1
|
Chen Y, Qian J, Li L, Wu F, Chen R. Advances in Inorganic Solid-State Electrolyte/Li Interface. Chemistry 2024; 30:e202303454. [PMID: 37962516 DOI: 10.1002/chem.202303454] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Revised: 11/13/2023] [Accepted: 11/14/2023] [Indexed: 11/15/2023]
Abstract
The increasing demand for high-energy-density and high-safety energy storage devices has sparked a growing interest in all-solid-state lithium metal batteries (ASSLMBs). A high-quality inorganic solid-state electrolyte (ISE) is a fundamental requirement for ASSLMBs, and an effective ISE/Li interface is a key factor in attaining high-performance ASSLMBs. In this Concept, we initially summarize the challenges encountered by ISE/Li interfaces and delineate four commonly employed strategies for modifying the ISE/Li interface. Then, we explore the merits and drawbacks of coatings utilized as ISE/Li interfacial phases. We also delve into the commonly employed thermal bonding and innovative cold bonding methods utilized for in situ interface preparation. Lastly, we spotlight future directions for enhancing the functionality of ISE/Li interfaces and achieving high-performance ASSLMBs.
Collapse
Affiliation(s)
- Yi Chen
- Beijing Key Laboratory of Environmental Science and Engineering, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, China
| | - Ji Qian
- Beijing Key Laboratory of Environmental Science and Engineering, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, China
- Institute of Advanced Technology, Beijing Institute of Technology, Jinan, Shandong, 250300, China
| | - Li Li
- Beijing Key Laboratory of Environmental Science and Engineering, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, China
- Institute of Advanced Technology, Beijing Institute of Technology, Jinan, Shandong, 250300, China
| | - Feng Wu
- Beijing Key Laboratory of Environmental Science and Engineering, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, China
- Institute of Advanced Technology, Beijing Institute of Technology, Jinan, Shandong, 250300, China
| | - Renjie Chen
- Beijing Key Laboratory of Environmental Science and Engineering, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, China
- Institute of Advanced Technology, Beijing Institute of Technology, Jinan, Shandong, 250300, China
| |
Collapse
|
2
|
Khan K, Hanif MB, Xin H, Hussain A, Ali HG, Fu B, Fang Z, Motola M, Xu Z, Wu M. PEO-Based Solid Composite Polymer Electrolyte for High Capacity Retention All-Solid-State Lithium Metal Battery. Small 2024; 20:e2305772. [PMID: 37712152 DOI: 10.1002/smll.202305772] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Revised: 08/28/2023] [Indexed: 09/16/2023]
Abstract
The limited ionic conductivity at room temperature and the constrained electrochemical window of poly(ethylene oxide) (PEO) pose significant obstacles that hinder its broader utilization in high-energy-density lithium metal batteries. The garnet-type material Li6.4 La3 Zr1.4 Ta0.6 O12 (LLZTO) is recognized as a highly promising active filler for enhancing the performance of PEO-based solid polymer electrolytes (SPEs). However, its performance is still limited by its high interfacial resistance. In this study, a novel hybrid filler-designed SPE is employed to achieve excellent electrochemical performance for both the lithium metal anode and the LiFePO4 cathode. The solid composite membrane containing hybrid fillers achieves a maximum ionic conductivity of 1.9 × 10-4 S cm-1 and a Li+ transference number of 0.67 at 40 °C, respectively. Additionally, the Li/Li symmetric cells demonstrate a smooth and stable process for 2000 h at a current density of 0.1 mA cm-2 . Furthermore, the LiFePO4 /Li battery delivers a high-rate capacity of 159.2 mAh g-1 at 1 C, along with a capacity retention of 95.2% after 400 cycles. These results validate that employing a composite of both active and inactive fillers is an effective strategy for achieving superior performance in all-solid-state lithium metal batteries (ASSLMBs).
Collapse
Affiliation(s)
- Kashif Khan
- Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China, Huzhou, Zhejiang, 313001, P. R. China
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu, 611731, P. R. China
| | - Muhammad Bilal Hanif
- Department of Inorganic Chemistry, Faculty of Natural Sciences, Comenius University Bratislava, Bratislava, 842 15, Slovakia
| | - Hu Xin
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu, 611731, P. R. China
| | - Arshad Hussain
- Institute for Advanced Study, Shenzhen University, Guangdong, 518060, China
| | - Hina Ghulam Ali
- Helmholtz-Institute Ulm - Electrochemical Energy Storage (HIU), Helmholtzstraße 11, 89081, Ulm, Germany
| | - Bowen Fu
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu, 611731, P. R. China
| | - Zixuan Fang
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu, 611731, P. R. China
| | - Martin Motola
- Department of Inorganic Chemistry, Faculty of Natural Sciences, Comenius University Bratislava, Bratislava, 842 15, Slovakia
| | - Ziqiang Xu
- Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China, Huzhou, Zhejiang, 313001, P. R. China
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu, 611731, P. R. China
| | - Mengqiang Wu
- Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China, Huzhou, Zhejiang, 313001, P. R. China
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu, 611731, P. R. China
| |
Collapse
|
3
|
Li W, Quirk JA, Li M, Xia W, Morgan LM, Yin W, Zheng M, Gallington LC, Ren Y, Zhu N, King G, Feng R, Li R, Dawson JA, Sham TK, Sun X. Precise Tailoring of Lithium-Ion Transport for Ultralong-Cycling Dendrite-Free All-Solid-State Lithium Metal Batteries. Adv Mater 2023:e2302647. [PMID: 37993111 DOI: 10.1002/adma.202302647] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Revised: 11/06/2023] [Indexed: 11/24/2023]
Abstract
All-solid-state lithium metal batteries can address crucial challenges regarding insufficient battery cycling life and energy density. The demonstration of long-cycling dendrite-free all-solid-state lithium metal batteries requires precise tailoring of lithium-ion transport of solid-state electrolytes (SSEs). In this work, a proof of concept is reported for precise tailoring of lithium-ion transport of a halide SSE, Li3 InCl6 , including intragranular (within grains) but also intergranular (between grains) lithium-ion transport. Lithium-ion migration tailoring mechanism in crystals is developed by unexpected enhanced Li, In, and Cl vacancy populations and lower energy barrier for hopping. The lithium-ion transport tailoring mechanism between the grains is determined by the elimination of voids between grains and the formation of unexpected supersonic conducting grain boundaries, boosting the lithium dendrite suppression ability of SSE. Due to boosted lithium-ion conduction and dendrite-suppression ability, the all-solid-state lithium metal batteries coupled with Ni-rich LiNi0.83 Co0.12 Mn0.05 O2 cathodes and lithium metal anodes demonstrate breakthroughs in electrochemical performance by achieving extremely long cycling life at a high current density of 0.5 C (2000 cycles, 93.7% capacity retention). This concept of precise tailoring of lithium-ion transport provides a cost, time, and energy efficient solution to conquer the remaining challenges in all-solid-state lithium-metal batteries for fast developing electric vehicle markets.
Collapse
Affiliation(s)
- Weihan Li
- Department of Mechanical and Materials Engineering, Western University, London, ON, N6A 5B9, Canada
- Department of Chemistry and Soochow-Western Centre for Synchrotron Radiation Research, Western University, London, ON, N6A 5B7, Canada
| | - James A Quirk
- Chemistry - School of Natural and Environmental Sciences, Newcastle University, Newcastle upon Tyne, NE1 7RU, UK
| | - Minsi Li
- Department of Mechanical and Materials Engineering, Western University, London, ON, N6A 5B9, Canada
- Department of Chemistry and Soochow-Western Centre for Synchrotron Radiation Research, Western University, London, ON, N6A 5B7, Canada
| | - Wei Xia
- Eastern Institute for Advanced Study, Eastern Institute of Technology, Ningbo, Zhejiang, 315201, China
| | | | - Wen Yin
- Institute of High Energy Physics, Chinese Academy of Sciences (CAS), Beijing, 100049, China
| | - Matthew Zheng
- Department of Mechanical and Materials Engineering, Western University, London, ON, N6A 5B9, Canada
| | | | - Yang Ren
- Department of Physics, City University of Hong Kong, Kowloon, Hong Kong, 999077, China
- Centre for Neutron Scattering, City University of Hong Kong, Kowloon, Hong Kong, 999077, China
| | - Ning Zhu
- Canadian Light Source, 44 Innovation Boulevard, Saskatoon, Saskatchewan, S7N 2V3, Canada
| | - Graham King
- Canadian Light Source, 44 Innovation Boulevard, Saskatoon, Saskatchewan, S7N 2V3, Canada
| | - Renfei Feng
- Canadian Light Source, 44 Innovation Boulevard, Saskatoon, Saskatchewan, S7N 2V3, Canada
| | - Ruying Li
- Department of Mechanical and Materials Engineering, Western University, London, ON, N6A 5B9, Canada
| | - James A Dawson
- Chemistry - School of Natural and Environmental Sciences, Newcastle University, Newcastle upon Tyne, NE1 7RU, UK
- Centre for Energy, Newcastle University, Newcastle upon Tyne, NE1 7RU, UK
| | - Tsun-Kong Sham
- Department of Chemistry and Soochow-Western Centre for Synchrotron Radiation Research, Western University, London, ON, N6A 5B7, Canada
| | - Xueliang Sun
- Department of Mechanical and Materials Engineering, Western University, London, ON, N6A 5B9, Canada
- Eastern Institute for Advanced Study, Eastern Institute of Technology, Ningbo, Zhejiang, 315201, China
| |
Collapse
|
4
|
Yan S, Liu F, Ou Y, Zhou HY, Lu Y, Hou W, Cao Q, Liu H, Zhou P, Liu K. Asymmetric Trihalogenated Aromatic Lithium Salt Induced Lithium Halide Rich Interface for Stable Cycling of All-Solid-State Lithium Batteries. ACS Nano 2023; 17:19398-19409. [PMID: 37781911 DOI: 10.1021/acsnano.3c07246] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/03/2023]
Abstract
Solid polymer electrolytes (SPEs) are the key components for all-solid-state lithium metal batteries with high energy density and intrinsic safety. However, the low lithium ion transference number (t+) of a conventional SPE and its unstable electrolyte/electrode interface cannot guarantee long-term stable operation. Herein, asymmetric trihalogenated aromatic lithium salts, i.e., lithium (3,4,5-trifluorobenzenesulfonyl)(trifluoromethanesulfonyl)imide (LiFFF) and lithium (4-bromo-3,5-difluorobenzenesulfonyl)(trifluoromethanesulfonyl)imide (LiFBF), are synthesized for polymer electrolytes. They exhibit higher t+ values and better compatibility with Li metal than conventional lithium bis(trifluoromethanesulfonyl) imide (LiTFSI). Due to the trihalogenated aromatic anions, LiFFF- and LiFBF-based electrolytes are prone to generate an LiF- and LiBr-rich solid electrolyte interphase (SEI), therefore increasing the stability of the solid electrolyte/anode interface. Particularly, LiFBF could induce a LiF/LiBr hybrid SEI, where LiF shows a high Young's modulus and high surface energy for homogenizing Li ion flux and LiBr exhibits an extremely low Li ion diffusion barrier in the SEI layer. As a result, the Li/Li symmetric cells could remain stable for more than 1200 h without a short circuit and the LiFePO4/Li batteries showed superb electrochemical performance over 1200 cycles at 1 C. This work provides valuable insights from the perspective of lithium salt molecular structures for high-performance all-solid-state lithium metal batteries.
Collapse
Affiliation(s)
- Shuaishuai Yan
- State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, People's Republic of China
| | - Fengxiang Liu
- State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, People's Republic of China
| | - Yu Ou
- State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, People's Republic of China
| | - Hang-Yu Zhou
- State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, People's Republic of China
- National Academy of Safety Science and Engineering, China Academy of Safety Science and Technology, Beijing 100012, People's Republic ofChina
| | - Yang Lu
- State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, People's Republic of China
| | - Wenhui Hou
- State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, People's Republic of China
| | - Qingbin Cao
- State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, People's Republic of China
| | - Hao Liu
- State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, People's Republic of China
| | - Pan Zhou
- State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, People's Republic of China
| | - Kai Liu
- State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, People's Republic of China
| |
Collapse
|
5
|
Lei C, Li J, Tan Z, Li Y, He P, Liu Y, Li Y, Wu F, Cheng Y, He Z. Double-Layer Electrolyte Boosts Cycling Stability of All-Solid-State Li Metal Batteries. ACS Appl Mater Interfaces 2023. [PMID: 37341215 DOI: 10.1021/acsami.3c06118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 06/22/2023]
Abstract
All-solid-state lithium metal batteries (ASSLMBs), as a candidate for advanced energy storage devices, invite an abundance of interest due to the merits of high specific energy density and eminent safety. Nevertheless, issues of overwhelming lithium dendrite growth and poor interfacial contact still limit the practical application of ASSLMBs. Herein, we designed and fabricated a double-layer composite solid electrolyte (CSE), namely, PVDF-LiTFSI-Li1.3Al0.3Ti1.7(PO4)3/PVDF-LiTFSI-h-BN (denoted as PLLB), for ASSLMBs. The reduction-tolerant PVDF-LiTFSI-h-BN (denoted as PLB) layer of the CSE tightly contacts with the Li metal anode to avoid the reduction of LATP by the electrode and participates in the formation of a stable SEI film using Li3N. Meanwhile, the oxidation-resistance and ion-conductive PVDF-LiTFSI- LATP (denoted as PLA) layer facing the cathode can reduce the interfacial impedance by facilitating ionic migration. With the synergistic effect of PLA and PLB, the Li/Li symmetric cells with sandwich-type electrolytes (PLB/PLA/PLB) can operate for 1500 h with ultralong cycling stability at 0.1 mA cm-2. Additionally, the LiFePO4/Li cell with PLLB maintains satisfactory capacity retention of 88.2% after 250 cycles. This novel double-layer electrolyte offers an effective approach to achieving fully commercialized ASSLMBs.
Collapse
Affiliation(s)
- Changlong Lei
- School of Metallurgy and Environment, Central South University, Changsha, Hunan 410083, China
- National Engineering Research Center of Low-carbon Nonferrous Metallurgy, Central South University, Changsha, Hunan 410083, China
- Engineering Research Center of the Ministry of Education for Advanced Battery Materials, Central South University, Changsha, Hunan 410083, China
| | - Jingyi Li
- School of Metallurgy and Environment, Central South University, Changsha, Hunan 410083, China
- National Engineering Research Center of Low-carbon Nonferrous Metallurgy, Central South University, Changsha, Hunan 410083, China
- Engineering Research Center of the Ministry of Education for Advanced Battery Materials, Central South University, Changsha, Hunan 410083, China
| | - Zhouliang Tan
- School of Metallurgy and Environment, Central South University, Changsha, Hunan 410083, China
- National Engineering Research Center of Low-carbon Nonferrous Metallurgy, Central South University, Changsha, Hunan 410083, China
- Engineering Research Center of the Ministry of Education for Advanced Battery Materials, Central South University, Changsha, Hunan 410083, China
| | - Yue Li
- School of Metallurgy and Environment, Central South University, Changsha, Hunan 410083, China
- National Engineering Research Center of Low-carbon Nonferrous Metallurgy, Central South University, Changsha, Hunan 410083, China
- Engineering Research Center of the Ministry of Education for Advanced Battery Materials, Central South University, Changsha, Hunan 410083, China
| | - PeiPei He
- School of Metallurgy and Environment, Central South University, Changsha, Hunan 410083, China
- National Engineering Research Center of Low-carbon Nonferrous Metallurgy, Central South University, Changsha, Hunan 410083, China
- Engineering Research Center of the Ministry of Education for Advanced Battery Materials, Central South University, Changsha, Hunan 410083, China
| | - Yuming Liu
- School of Metallurgy and Environment, Central South University, Changsha, Hunan 410083, China
- National Engineering Research Center of Low-carbon Nonferrous Metallurgy, Central South University, Changsha, Hunan 410083, China
- Engineering Research Center of the Ministry of Education for Advanced Battery Materials, Central South University, Changsha, Hunan 410083, China
| | - Yunjiao Li
- School of Metallurgy and Environment, Central South University, Changsha, Hunan 410083, China
- National Engineering Research Center of Low-carbon Nonferrous Metallurgy, Central South University, Changsha, Hunan 410083, China
- Engineering Research Center of the Ministry of Education for Advanced Battery Materials, Central South University, Changsha, Hunan 410083, China
| | - Feixiang Wu
- School of Metallurgy and Environment, Central South University, Changsha, Hunan 410083, China
- National Engineering Research Center of Low-carbon Nonferrous Metallurgy, Central South University, Changsha, Hunan 410083, China
- Engineering Research Center of the Ministry of Education for Advanced Battery Materials, Central South University, Changsha, Hunan 410083, China
| | - Yi Cheng
- School of Metallurgy and Environment, Central South University, Changsha, Hunan 410083, China
- National Engineering Research Center of Low-carbon Nonferrous Metallurgy, Central South University, Changsha, Hunan 410083, China
- Engineering Research Center of the Ministry of Education for Advanced Battery Materials, Central South University, Changsha, Hunan 410083, China
| | - Zhenjiang He
- School of Metallurgy and Environment, Central South University, Changsha, Hunan 410083, China
- National Engineering Research Center of Low-carbon Nonferrous Metallurgy, Central South University, Changsha, Hunan 410083, China
- Engineering Research Center of the Ministry of Education for Advanced Battery Materials, Central South University, Changsha, Hunan 410083, China
| |
Collapse
|
6
|
Wang Z, Ma J, Cui P, Yao X. High-Rate Solid Polymer Electrolyte Based Flexible All-Solid-State Lithium Metal Batteries. ACS Appl Mater Interfaces 2022; 14:34649-34655. [PMID: 35853197 DOI: 10.1021/acsami.2c06204] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
A flexible poly(vinylidene fluoride)-polyetherimide@poly(ethylene glycol) (PVDF-PEI@PEG) solid composite polymer electrolyte is prepared by an in situ thermal curing approach. The homogeneous PVDF-PEI composite porous membrane with an optimized PVDF and PEI weight ratio increases the amorphous phase, while the fast lithium ion transport channels are formed through the filled PEG electrolytes. The optimized polymer electrolyte exhibits high ionic conductivity of 2.36 × 10-4 S cm-1 at 60 °C and lithium ion transference number of 0.578 as well as excellent electrochemical stability window of 5.5 V. Moreover, the superior stability toward lithium metal anode enables over 3600 h cycling of the Li//Li symmetric cell at 0.1 mA cm-2. In particular, the LiFePO4//Li battery delivers high specific capacities of 132.4 and 111.5 mAh g-1 with a retention of 86.6% and 85.9% after 200 cycles at 2 C and 100 cycles at 3 C rate under 60 °C, respectively, demonstrating the feasibility as an energy storage device with high rate capability.
Collapse
Affiliation(s)
- Zhiyan Wang
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, P. R. China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Junfeng Ma
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, P. R. China
| | - Ping Cui
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, P. R. China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Xiayin Yao
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, P. R. China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| |
Collapse
|
7
|
Kim JH, Go K, Lee KJ, Kim H. Improved Performance of All-Solid-State Lithium Metal Batteries via Physical and Chemical Interfacial Control. Adv Sci (Weinh) 2022; 9:e2103433. [PMID: 34761571 PMCID: PMC8805574 DOI: 10.1002/advs.202103433] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Revised: 09/30/2021] [Indexed: 06/13/2023]
Abstract
Lithium metal batteries (LMBs) show several limitations, such as high flammability and Li dendrite growth. All-solid-state LMBs (ASSLMBs) are promising alternatives to conventional liquid electrolyte (LE)-based LMBs. However, it is challenging to prepare a solid electrolyte with both high ionic conductivity and low electrode-electrolyte interfacial resistance. In this study, to overcome these problems, a solid composite electrolyte (SCE) consisting of Li6.25 La3 Zr2 Al0.25 O12 and polyvinylidene fluoride-co-hexafluoropropylene is used, which has attracted considerable attention in recent years as a solid-state electrolyte. To operate LMBs without an LE, optimization of the electrode-solid-electrolyte interface is crucial. To achieve this, physical and chemical treatments are performed, i.e., direct growth of each layer by drop casting and thermal evaporation, and plasma treatment before the Li evaporation process, respectively. The optimized ASSLMB (amorphous V2 O5- x (1 µm)/SCE (30 µm)/Li film (10 µm)) has a high discharge capacity of 136.13 mAh g-1 (at 50 °C and 5 C), which is 90% of that of an LMB with an LE. It also shows good cycling performance (>99%) over 1000 cycles. Thus, the proposed design minimizes the electrode-solid-electrolyte interfacial resistance, and is expected to be suitable for integration with existing commercial processes.
Collapse
Affiliation(s)
- Jong Heon Kim
- Department of Materials Science and EngineeringCollege of EngineeringChungnam National University99 Daehak‐ro, Yuseong‐guDaejeon34134Republic of Korea
| | - Kwangmo Go
- Department of Chemical Engineering and Applied ChemistryCollege of EngineeringChungnam National University99 Daehak‐ro, Yuseong‐guDaejeon34134Republic of Korea
| | - Kyung Jin Lee
- Department of Chemical Engineering and Applied ChemistryCollege of EngineeringChungnam National University99 Daehak‐ro, Yuseong‐guDaejeon34134Republic of Korea
| | - Hyun‐Suk Kim
- Department of Materials Science and EngineeringCollege of EngineeringChungnam National University99 Daehak‐ro, Yuseong‐guDaejeon34134Republic of Korea
| |
Collapse
|
8
|
Li D, Chen L, Wang T, Fan LZ. 3D Fiber-Network-Reinforced Bicontinuous Composite Solid Electrolyte for Dendrite-free Lithium Metal Batteries. ACS Appl Mater Interfaces 2018; 10:7069-7078. [PMID: 29411972 DOI: 10.1021/acsami.7b18123] [Citation(s) in RCA: 94] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Replacement of flammable organic liquid electrolytes with solid Li+ conductors is a promising approach to realize excellent performance of Li metal batteries. However, ceramic electrolytes are either easily reduced by Li metal or penetrated by Li dendrites through their grain boundaries, and polymer electrolytes are also faced with instability on the electrode/electrolyte interface and weak mechanical property. Here, we report a three-dimensional fiber-network-reinforced bicontinuous solid composite electrolyte with flexible Li+-conductive network (lithium aluminum titanium phosphate (LATP)/polyacrylonitrile), which helps to enhance electrochemical stability on the electrode/electrolyte interface by isolating Li and LATP and suppress Li dendrites growth by mechanical reinforcement of fiber network for the composite solid electrolyte. The composite electrolyte shows an excellent electrochemical stability after 15 days of contact with Li metal and has an enlarged tensile strength (10.72 MPa) compared to the pure poly(ethylene oxide)-bistrifluoromethanesulfonimide lithium salt electrolyte, leading to a long-term stability and safety of the Li symmetric battery with a current density of 0.3 mA cm-2 for 400 h. In addition, the composite electrolyte also shows good electrochemical and thermal stability. These results provide such fiber-reinforced membranes that present stable electrode/electrolyte interface and suppress lithium dendrite growth for high-safety all-solid-state Li metal batteries.
Collapse
Affiliation(s)
- Dan Li
- Beijing Advanced Innovation Center for Materials Genome Engineering, Institute of Advanced Materials and Technology, University of Science and Technology Beijing , Beijing 100083, China
| | - Long Chen
- Beijing Advanced Innovation Center for Materials Genome Engineering, Institute of Advanced Materials and Technology, University of Science and Technology Beijing , Beijing 100083, China
| | - Tianshi Wang
- Beijing Advanced Innovation Center for Materials Genome Engineering, Institute of Advanced Materials and Technology, University of Science and Technology Beijing , Beijing 100083, China
| | - Li-Zhen Fan
- Beijing Advanced Innovation Center for Materials Genome Engineering, Institute of Advanced Materials and Technology, University of Science and Technology Beijing , Beijing 100083, China
| |
Collapse
|