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author:

Zheng, Tianle (Zheng, Tianle.) [1] | Xu, Tonghui (Xu, Tonghui.) [2] | Xiong, Jianwei (Xiong, Jianwei.) [3] | Xie, Weiping (Xie, Weiping.) [4] | Wu, Mengqi (Wu, Mengqi.) [5] | Yu, Ying (Yu, Ying.) [6] | Xu, Zhuijun (Xu, Zhuijun.) [7] | Liang, Yuxin (Liang, Yuxin.) [8] | Liao, Can (Liao, Can.) [9] (Scholars:廖灿) | Dong, Xiaoli (Dong, Xiaoli.) [10] | Xia, Yongyao (Xia, Yongyao.) [11] | Cheng, Ya-Jun (Cheng, Ya-Jun.) [12] | Xia, Yonggao (Xia, Yonggao.) [13] | Mueller-Buschbaum, Peter (Mueller-Buschbaum, Peter.) [14]

Indexed by:

Scopus SCIE

Abstract:

In this study, a novel concept of multipoint anionic bridge (MAB) is proposed and proved, which utilizes anions with different sites to connect with the asymmetric solvation structure (ASS). Compared to usual solvation structures, this study utilizes the multifunctional groups of difluoro(oxalate)borate anion (ODFB-), which can connect with Li+. By tailoring the concentration, the anion serves as a bridge between different solvated structures. The electrolyte is investigated through in situ techniques and simulations to draw correlations between different solvation structures and reaction pathways. The proposed design demonstrates remarkable high-temperature performance on both the anode and cathode sides, enabling stable cycling of LCO||graphite (0.5 Ah, 1.0 C) pouch cell for over 200 cycles at 80 degrees C and facilitating Li||MCMB and Li||LFP cells to deliver stable performance for 200 cycles at 100 degrees C. This work paves the way for the development of high-performance electrolyte systems by designing and using new multipoint anions to construct ASSs.

Keyword:

asymmetric solvation structure high-concentration electrolyte high temperature lithium difluoro(oxalate)borate lithium metal batteries

Community:

  • [ 1 ] [Zheng, Tianle]Tech Univ Munich, Chair Funct Mat, TUM Sch Nat Sci, Dept Phys, James Franck Str 1, D-85748 Garching, Germany
  • [ 2 ] [Xu, Zhuijun]Tech Univ Munich, Chair Funct Mat, TUM Sch Nat Sci, Dept Phys, James Franck Str 1, D-85748 Garching, Germany
  • [ 3 ] [Liang, Yuxin]Tech Univ Munich, Chair Funct Mat, TUM Sch Nat Sci, Dept Phys, James Franck Str 1, D-85748 Garching, Germany
  • [ 4 ] [Mueller-Buschbaum, Peter]Tech Univ Munich, Chair Funct Mat, TUM Sch Nat Sci, Dept Phys, James Franck Str 1, D-85748 Garching, Germany
  • [ 5 ] [Xu, Tonghui]Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, 1219 Zhongguan West Rd, Ningbo 315201, Zhejiang, Peoples R China
  • [ 6 ] [Xie, Weiping]Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, 1219 Zhongguan West Rd, Ningbo 315201, Zhejiang, Peoples R China
  • [ 7 ] [Wu, Mengqi]Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, 1219 Zhongguan West Rd, Ningbo 315201, Zhejiang, Peoples R China
  • [ 8 ] [Cheng, Ya-Jun]Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, 1219 Zhongguan West Rd, Ningbo 315201, Zhejiang, Peoples R China
  • [ 9 ] [Xia, Yonggao]Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, 1219 Zhongguan West Rd, Ningbo 315201, Zhejiang, Peoples R China
  • [ 10 ] [Xu, Tonghui]Shanghai Univ, Coll Sci, Dept Chem, Shanghai 200444, Peoples R China
  • [ 11 ] [Xiong, Jianwei]Nanjing Univ Aeronaut & Astronaut, Coll Mat Sci & Technol, Nanjing 210016, Peoples R China
  • [ 12 ] [Xia, Yongyao]Nanjing Univ Aeronaut & Astronaut, Coll Mat Sci & Technol, Nanjing 210016, Peoples R China
  • [ 13 ] [Yu, Ying]AIE Inst, Guangzhou 510530, Guangdong, Peoples R China
  • [ 14 ] [Liao, Can]Fuzhou Univ, Coll Mat Sci & Engn, Fuzhou 350108, Fujian, Peoples R China
  • [ 15 ] [Dong, Xiaoli]Fudan Univ, Inst New Energy, Dept Chem, Shanghai 200433, Peoples R China
  • [ 16 ] [Xia, Yongyao]Fudan Univ, Inst New Energy, Dept Chem, Shanghai 200433, Peoples R China
  • [ 17 ] [Cheng, Ya-Jun]Hohai Univ, Coll Renewable Energy, Nanjing 213220, Jiangsu, Peoples R China
  • [ 18 ] [Xia, Yonggao]Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, Beijing 100049, Peoples R China

Reprint 's Address:

  • [Mueller-Buschbaum, Peter]Tech Univ Munich, Chair Funct Mat, TUM Sch Nat Sci, Dept Phys, James Franck Str 1, D-85748 Garching, Germany;;[Cheng, Ya-Jun]Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, 1219 Zhongguan West Rd, Ningbo 315201, Zhejiang, Peoples R China;;[Xia, Yonggao]Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, 1219 Zhongguan West Rd, Ningbo 315201, Zhejiang, Peoples R China;;[Cheng, Ya-Jun]Hohai Univ, Coll Renewable Energy, Nanjing 213220, Jiangsu, Peoples R China;;[Xia, Yonggao]Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, Beijing 100049, Peoples R China;;

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Source :

ADVANCED SCIENCE

Year: 2024

Issue: 48

Volume: 11

1 4 . 3 0 0

JCR@2023

CAS Journal Grade:1

Cited Count:

WoS CC Cited Count: 2

SCOPUS Cited Count: 2

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 2

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