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Ji Z, Hu T, Zhu Z, Wu D, Lv S, Yuan S, Zou T, Fu X, Yang W, Wang Y. Manipulating the Nanophase Separation of a Polymer-Salt Microfluid Generates an Advanced In Situ Separator for Component-Integrated Energy Storage Devices. ACS NANO 2024; 18:1098-1109. [PMID: 38154058 DOI: 10.1021/acsnano.3c10534] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2023]
Abstract
A polymer separator plays a pivotal role in battery safety, overall electrochemical performance, and cell assembly process. Traditional separators are separately produced from the electrodes and dominated by porous polyolefin thin films. In spite of their commercial success, today's separators are facing growing challenges with the increasing demand on the device safety and performance. As an attempt to address this urgent need, here, we propose a concept of in situ separator technology by manipulating the two-dimensional (2D) microfluid nanophase separation (2D-MFPS) of a poly(vinylidene difluoride)/lithium salt solution during drying. Particularly, nanophase separation is effectively regulated by low humidity, salt type, and compositions. For application studies, this 2D-MFPS is directly performed onto commercial electrodes under drying conditions with low humidity to fabricate a high-performance in situ separator with thickness and porous structures comparable to those of commercial Celgard separators. This in situ separator shows superior performance in high-temperature stability and wetting capability to a variety of liquid electrolytes. Finally, pouch cells with this in situ separator technology are successfully assembled with an extremely simplified separator-stacking-free process and demonstrate stable cycle performance due to the well-controlled porous structures and electrode-separator interface.
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Affiliation(s)
- Zhongfeng Ji
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, Sichuan, People's Republic of China
| | - Ting Hu
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, Sichuan, People's Republic of China
| | - Zhiwei Zhu
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, Sichuan, People's Republic of China
| | - Dichen Wu
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, Sichuan, People's Republic of China
| | - Shanshan Lv
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, Sichuan, People's Republic of China
| | - Shiyu Yuan
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, Sichuan, People's Republic of China
| | - Taiwei Zou
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, Sichuan, People's Republic of China
| | - Xuewei Fu
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, Sichuan, People's Republic of China
| | - Wei Yang
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, Sichuan, People's Republic of China
| | - Yu Wang
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, Sichuan, People's Republic of China
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Conjugated microporous polymer derived N, O and S co-doped sheet-like carbon materials as anode materials for high-performance lithium-ion batteries. J Taiwan Inst Chem Eng 2022. [DOI: 10.1016/j.jtice.2022.104293] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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3
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Xiao W, Cheng D, Huang L, Song J, Yang Z, Qiao Q. An integrated separator/anode assembly based on electrospinning technique for advanced lithium-ion batteries. Electrochim Acta 2021. [DOI: 10.1016/j.electacta.2021.138776] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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4
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Li C, Guo X, Du H, Zhao J, Liu L, Yuan Q, Fu C. The synthesis of the D-A-type polymers containing benzo[1,2-b:6,5-b′]dithiophene-4,5-dione unit, their composites with carbon, and the lithium storage performances as electrode materials. J Solid State Electrochem 2021. [DOI: 10.1007/s10008-021-04955-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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5
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Kim Y, Lee S, Yoon H. Fire-Safe Polymer Composites: Flame-Retardant Effect of Nanofillers. Polymers (Basel) 2021; 13:540. [PMID: 33673106 PMCID: PMC7918670 DOI: 10.3390/polym13040540] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Revised: 02/05/2021] [Accepted: 02/09/2021] [Indexed: 12/20/2022] Open
Abstract
Currently, polymers are competing with metals and ceramics to realize various material characteristics, including mechanical and electrical properties. However, most polymers consist of organic matter, making them vulnerable to flames and high-temperature conditions. In addition, the combustion of polymers consisting of different types of organic matter results in various gaseous hazards. Therefore, to minimize the fire damage, there has been a significant demand for developing polymers that are fire resistant or flame retardant. From this viewpoint, it is crucial to design and synthesize thermally stable polymers that are less likely to decompose into combustible gaseous species under high-temperature conditions. Flame retardants can also be introduced to further reinforce the fire performance of polymers. In this review, the combustion process of organic matter, types of flame retardants, and common flammability testing methods are reviewed. Furthermore, the latest research trends in the use of versatile nanofillers to enhance the fire performance of polymeric materials are discussed with an emphasis on their underlying action, advantages, and disadvantages.
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Affiliation(s)
- Yukyung Kim
- R&D Laboratory: Korea Fire Institute, 331 Jisam-ro, Giheung-gu, Yongin-si, Gyeonggi-do 17088, Korea;
| | - Sanghyuck Lee
- Department of Polymer Engineering, Graduate School, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju 61186, Korea;
| | - Hyeonseok Yoon
- Department of Polymer Engineering, Graduate School, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju 61186, Korea;
- School of Polymer Science and Engineering, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju 61186, Korea
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6
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Jiang W, Yan L, Zeng X, Meng X, Huang R, Zhu X, Ling M, Liang C. Adhesive Sulfide Solid Electrolyte Interface for Lithium Metal Batteries. ACS APPLIED MATERIALS & INTERFACES 2020; 12:54876-54883. [PMID: 33236875 DOI: 10.1021/acsami.0c17828] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
All solid-state Li metal batteries have drawn extensive attention because of the limited side reaction and consequent safety character. The applications of Li metal anodes are indispensable for realizing high energy density but still face many obstacles. One of the critical issues is the contact failure of the solid/solid interface. The rigid interface between a sulfide electrolyte and Li anode cannot afford the volume variation during cycling. Herein, we design an adhesive solid-state electrolyte film, which is supported by hot melt adhesive porous membranes for anode protection. The Li symmetric cells and all solid-state batteries based on adhesive electrolyte layers all exhibit enhanced long cyclic stability and suppressed voltage polarization. The peel strength tests confirm that the electrolyte layers decorated with adhesive components can offer intimate Li metal/electrolyte physical contact and withstand the volume variation of the Li anode. The adhesion force from porous membranes is believed to play a vital role in maintaining solid-solid interfacial contact stability. This work gives a new insight for interface engineering in all solid-state Li metal batteries.
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Affiliation(s)
- Wei Jiang
- Zhejiang Provincial Key Laboratory of Advanced Chemical Engineering Manufacture Technology, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, P. R. China
| | - Lijing Yan
- College of Materials and Chemistry, China Jiliang University, Hangzhou 310018, P. R. China
| | - Xiaomin Zeng
- Zhejiang Provincial Key Laboratory of Advanced Chemical Engineering Manufacture Technology, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, P. R. China
| | - Xiangjuan Meng
- Zhejiang Provincial Key Laboratory of Advanced Chemical Engineering Manufacture Technology, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, P. R. China
| | - Renzhi Huang
- Zhejiang Provincial Key Laboratory of Advanced Chemical Engineering Manufacture Technology, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, P. R. China
| | - Xinxin Zhu
- Zhejiang Provincial Key Laboratory of Advanced Chemical Engineering Manufacture Technology, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, P. R. China
| | - Min Ling
- Zhejiang Provincial Key Laboratory of Advanced Chemical Engineering Manufacture Technology, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, P. R. China
| | - Chengdu Liang
- Zhejiang Provincial Key Laboratory of Advanced Chemical Engineering Manufacture Technology, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, P. R. China
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Li Y, Feng X, Ren D, Ouyang M, Lu L, Han X. Thermal Runaway Triggered by Plated Lithium on the Anode after Fast Charging. ACS APPLIED MATERIALS & INTERFACES 2019; 11:46839-46850. [PMID: 31742989 DOI: 10.1021/acsami.9b16589] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Battery safety, at the foundation of fast charging, is critical to the application of lithium-ion batteries, especially for high energy density cells applied in electric vehicles. In this paper, an earlier thermal runaway of cells after fast charging application is illustrated. Under this condition, the reaction between the plated lithium and electrolyte is revealed to be the mechanism of thermal runaway triggering. The mechanism is proved by the accelerated rate calorimetry tests for partial cells, which determine the triggering reactions of thermal runaway in the anode-electrolyte thermodynamic system. The reactants in this system are analyzed by nuclear magnetic resonance and differential scanning calorimetry, proving that the vigorous exothermic reaction is induced by the interaction between the plated lithium and electrolyte. As a result, the finding of thermal runaway triggered by the plated lithium on anode surface of cells after fast charging promotes the understanding of thermal runaway mechanisms, which warns of the danger of plated lithium in the utilization of lithium-ion batteries.
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Affiliation(s)
- Yalun Li
- State Key Laboratory of Automotive Safety and Energy , Tsinghua University , Beijing 100084 , China
| | - Xuning Feng
- State Key Laboratory of Automotive Safety and Energy , Tsinghua University , Beijing 100084 , China
| | - Dongsheng Ren
- State Key Laboratory of Automotive Safety and Energy , Tsinghua University , Beijing 100084 , China
| | - Minggao Ouyang
- State Key Laboratory of Automotive Safety and Energy , Tsinghua University , Beijing 100084 , China
| | - Languang Lu
- State Key Laboratory of Automotive Safety and Energy , Tsinghua University , Beijing 100084 , China
| | - Xuebing Han
- State Key Laboratory of Automotive Safety and Energy , Tsinghua University , Beijing 100084 , China
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8
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Aramid nanofibers/polyphenylene sulfide nonwoven composite separator fabricated through a facile papermaking method for lithium ion battery. J Memb Sci 2019. [DOI: 10.1016/j.memsci.2019.117169] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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9
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Electrospun Core-Shell Nanofiber as Separator for Lithium-Ion Batteries with High Performance and Improved Safety. ENERGIES 2019. [DOI: 10.3390/en12173391] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Though the energy density of lithium-ion batteries continues to increase, safety issues related to the internal short circuit and the resulting combustion of highly flammable electrolytes impede the further development of lithium-ion batteries. It has been well-accepted that a thermal stable separator is important to postpone the entire battery short circuit and thermal runaway. Traditional methods to improve the thermal stability of separators include surface modification and/or developing alternate material systems for separators, which may affect the battery performance negatively. Herein, a thermostable and shrink-free separator with little compromise in battery performance was prepared by coaxial electrospinning and tested. The separator consisted of core-shell fiber networks where poly (vinylidene fluoride-hexafluoropropylene) (PVDF-HFP) layer served as shell and polyacrylonitrile (PAN) as the core. This core-shell fiber network exhibited little or even no shrinking/melting at elevated temperature over 250 °C. Meanwhile, it showed excellent electrolyte wettability and could take large amounts of liquid electrolyte, three times more than that of conventional Celgard 2400 separator. In addition, the half-cell using LiNi1/3Co1/3Mn1/3O2 as cathode and the aforementioned electrospun core-shell fiber network as separator demonstrated superior electrochemical behavior, stably cycling for 200 cycles at 1 C with a reversible capacity of 130 mA·h·g−1 and little capacity decay.
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10
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Jeon H, Roh Y, Jin D, Ryou MH, Jeong YC, Lee YM. Crosslinkable polyhedral silsesquioxane-based ceramic-coated separators for Li-ion batteries. J IND ENG CHEM 2019. [DOI: 10.1016/j.jiec.2018.11.036] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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11
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Chen B, Zhang Y, Zhang J, Zhu L, Zhao H. PEGylated polyvinylidene fluoride membranes via grafting from a graphene oxide additive for improving permeability and antifouling properties. RSC Adv 2019; 9:18688-18696. [PMID: 35515263 PMCID: PMC9064814 DOI: 10.1039/c9ra03337h] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2019] [Accepted: 05/30/2019] [Indexed: 11/21/2022] Open
Abstract
Polyvinylidene fluoride (PVDF) porous membranes with enhanced hydrophilicity and antifouling performance were developed via surface PEGylation (PEG, polyethylene glycol) via a reactive graphene oxide (GO) additive. PVDF/GO blended membranes were first fabricated via a non-solvent-induced phase separation process. Then the carboxyl groups of GO sheets immobilized on the membrane surface acted as initiating sites for grafting amine-functionalized PEG (PEG-NH2) chains via an amination reaction. Analysis of the X-ray photoelectron spectroscopy and Fourier transform infrared spectroscopy-attenuated total reflectance results confirmed the successful grafting of hydrophilic PEG molecular chains on PVDF membrane surfaces. The water contact angle of the PEGylated PVDF membrane decreased to 59.9°, indicating improved hydrophilicity. As a result, the antifouling performance was enhanced significantly. After surface PEGylation, the flux recovery rate is reached 90.2%, the total fouling ratio was as low as 20.7%, and reversible fouling plays a dominant role during the membrane fouling process. This work provides a valuable strategy to fabricate PEGylated membranes via the introduction of a reactive GO additive. Polyvinylidene fluoride (PVDF) porous membranes with enhanced hydrophilicity and antifouling performance were developed via surface PEGylation (PEG, polyethylene glycol) via a reactive graphene oxide (GO) additive.![]()
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Affiliation(s)
- Bin Chen
- School of Materials Science and Engineering
- Shenyang University of Chemical Technology
- Shenyang 110142
- P. R. China
| | - Yan Zhang
- School of Materials Science and Engineering
- Shenyang University of Chemical Technology
- Shenyang 110142
- P. R. China
- Key Laboratory of Marine Materials and Related Technologies
| | - Jialu Zhang
- School of Materials Science and Engineering
- Shenyang University of Chemical Technology
- Shenyang 110142
- P. R. China
- Key Laboratory of Marine Materials and Related Technologies
| | - Lijing Zhu
- Key Laboratory of Marine Materials and Related Technologies
- Zhejiang Key Laboratory of Marine Materials and Protective Technologies
- Ningbo Institute of Materials Technology and Engineering
- Chinese Academy of Science
- Ningbo 315201
| | - Haichao Zhao
- Key Laboratory of Marine Materials and Related Technologies
- Zhejiang Key Laboratory of Marine Materials and Protective Technologies
- Ningbo Institute of Materials Technology and Engineering
- Chinese Academy of Science
- Ningbo 315201
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12
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Jana KK, Lue SJ, Huang A, Soesanto JF, Tung KL. Separator Membranes for High Energy-Density Batteries. CHEMBIOENG REVIEWS 2018. [DOI: 10.1002/cben.201800014] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Karun Kumar Jana
- National Taiwan University; Department of Chemical Engineering and Advanced Research Center for Green Materials Science and Technology; No. 1, Sec. 4, Roosevelt Rd. 10617 Taipei Taiwan
| | - Shingjiang Jessie Lue
- Chang Gung University; Department of Chemical and Materials Engineering and Green Technology Research Center; 259 Wenhua 1st Rd., Guishan Dist. 33302 Taoyuan City Taiwan
- Department of Safety, Health and Environmental Engineering; Ming Chi University of Technology; 84 Gungjuan Road, Taishan District 243 New Taipei City Taiwan
- Department of Radiation Oncology; Chang Gung Memorial Hospital; 5 Fuxing Street, Guishan District 333 Taoyuan Taiwan
| | - Allen Huang
- National Taiwan University; Department of Chemical Engineering and Advanced Research Center for Green Materials Science and Technology; No. 1, Sec. 4, Roosevelt Rd. 10617 Taipei Taiwan
| | - Jansen Fajar Soesanto
- National Taiwan University; Department of Chemical Engineering and Advanced Research Center for Green Materials Science and Technology; No. 1, Sec. 4, Roosevelt Rd. 10617 Taipei Taiwan
| | - Kuo-Lun Tung
- National Taiwan University; Department of Chemical Engineering and Advanced Research Center for Green Materials Science and Technology; No. 1, Sec. 4, Roosevelt Rd. 10617 Taipei Taiwan
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13
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Li Z, Xiong Y, Sun S, Zhang L, Li S, Liu X, Xu Z, Xu S. Tri-layer nonwoven membrane with shutdown property and high robustness as a high-safety lithium ion battery separator. J Memb Sci 2018. [DOI: 10.1016/j.memsci.2018.07.094] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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