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Sun H, Liu Z, Xin M, Shi Y, Wang Y, Ma S, Yang X, Xie H, Liu Y. Enabling long-term oxide based solid-state lithium metal battery through a near room-temperature sintering process. J Colloid Interface Sci 2024; 653:908-916. [PMID: 37774654 DOI: 10.1016/j.jcis.2023.09.125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Revised: 08/29/2023] [Accepted: 09/21/2023] [Indexed: 10/01/2023]
Abstract
The huge Li ion transport resistance through the grain boundaries (GBs) among rigid oxide particles forces the adoption of high-temperature sintering (HTS) process over 1000 °C. Nevertheless, the severe side reactions and uncontrollable lithium loss are always companied during the high-cost HTS process, which slows down the pace of oxide solid electrolyte (OSE) for practical application and accelerates the exploration of a new OSE sintering process. Herein, a near-room-temperature (60 °C) cold-sintering process is proposed by filling the GBs with a low-melting-point plastic crystal electrolyte (PCE). Due to the soft property and high-ionic conductivity of PCE, the Li ion transport rate through the GBs is 10 times faster than the bulk phase, endowing the OSE (Li1.5Al0.5Ge1.5(PO4)3 chosen as a representative) with a room temperature ionic conductivity of 0.25 mS cm-1. As proof of the concept, the assembled Li symmetrical cells perform a low over-potential of 50 mV with a capacity of 1 mA h cm-2 and full cells delivers a capacity retention of roughly 70% after 820 cycles (1.5 years) at 0.1C.
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Affiliation(s)
- Hao Sun
- National & Local United Engineering Laboratory for Power Battery, Department of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Zhenhua Liu
- National & Local United Engineering Laboratory for Power Battery, Department of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Mingyang Xin
- National & Local United Engineering Laboratory for Power Battery, Department of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Yuting Shi
- National & Local United Engineering Laboratory for Power Battery, Department of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Yutao Wang
- Department of Mechanical Engineering, Worcester Polytechnic Institute, Worcester, MA 01609, USA
| | - Shunchao Ma
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry Chinese Academy of Sciences, Changchun 130022, China
| | - Xiaofei Yang
- Division of Energy Storage, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, Liaoning, China
| | - Haiming Xie
- National & Local United Engineering Laboratory for Power Battery, Department of Chemistry, Northeast Normal University, Changchun 130024, China.
| | - Yulong Liu
- National & Local United Engineering Laboratory for Power Battery, Department of Chemistry, Northeast Normal University, Changchun 130024, China.
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Chen N, Huang X, Qu L. Heteroatom substituted and decorated graphene: preparation and applications. Phys Chem Chem Phys 2015; 17:32077-98. [DOI: 10.1039/c5cp04391c] [Citation(s) in RCA: 56] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
The electronic structure and surface chemistry of graphene can be tuned subtly by doping with heteroatoms, which induces unique applications.
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Affiliation(s)
- Nan Chen
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials
- Key Laboratory of Cluster Science, Ministry of Education of China
- School of Chemistry
- Beijing Institute of Technology
- Beijing 100081
| | - Xianke Huang
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials
- Key Laboratory of Cluster Science, Ministry of Education of China
- School of Chemistry
- Beijing Institute of Technology
- Beijing 100081
| | - Liangti Qu
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials
- Key Laboratory of Cluster Science, Ministry of Education of China
- School of Chemistry
- Beijing Institute of Technology
- Beijing 100081
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