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Enhancing Li+ Transport in NMC811||Graphite Lithium-Ion Batteries at Low Temperatures by Using Low-Polarity-Solvent Electrolytes.
Nan, Bo; Chen, Long; Rodrigo, Nuwanthi D; Borodin, Oleg; Piao, Nan; Xia, Jiale; Pollard, Travis; Hou, Singyuk; Zhang, Jiaxun; Ji, Xiao; Xu, Jijian; Zhang, Xiyue; Ma, Lin; He, Xinzi; Liu, Sufu; Wan, Hongli; Hu, Enyuan; Zhang, Weiran; Xu, Kang; Yang, Xiao-Qing; Lucht, Brett; Wang, Chunsheng.
Affiliation
  • Nan B; Department of Chemistry and Biochemistry, University of Maryland, College Park, MD 20742, USA.
  • Chen L; Department of Chemical and Biomolecular Engineering, University of Maryland, College Park, MD 20742, USA.
  • Rodrigo ND; Department of Chemistry, University of Rhode Island, Kingston, RI 02881, USA.
  • Borodin O; Battery Science Branch, Energy Science Division, U.S. Army Combat Capabilities Development Command, Army Research Laboratory, Adelphi, MD 20783, USA.
  • Piao N; Department of Chemical and Biomolecular Engineering, University of Maryland, College Park, MD 20742, USA.
  • Xia J; Department of Chemical and Biomolecular Engineering, University of Maryland, College Park, MD 20742, USA.
  • Pollard T; Battery Science Branch, Energy Science Division, U.S. Army Combat Capabilities Development Command, Army Research Laboratory, Adelphi, MD 20783, USA.
  • Hou S; Department of Chemical and Biomolecular Engineering, University of Maryland, College Park, MD 20742, USA.
  • Zhang J; Department of Chemical and Biomolecular Engineering, University of Maryland, College Park, MD 20742, USA.
  • Ji X; Department of Chemical and Biomolecular Engineering, University of Maryland, College Park, MD 20742, USA.
  • Xu J; Department of Chemical and Biomolecular Engineering, University of Maryland, College Park, MD 20742, USA.
  • Zhang X; Department of Chemical and Biomolecular Engineering, University of Maryland, College Park, MD 20742, USA.
  • Ma L; Department of Mechanical Engineering and Engineering Science, The University of North Carolina at Charlotte, Charlotte, NC 28223, USA.
  • He X; Department of Chemical and Biomolecular Engineering, University of Maryland, College Park, MD 20742, USA.
  • Liu S; Department of Chemical and Biomolecular Engineering, University of Maryland, College Park, MD 20742, USA.
  • Wan H; Department of Chemical and Biomolecular Engineering, University of Maryland, College Park, MD 20742, USA.
  • Hu E; Chemistry Division, Brookhaven National Laboratory, Upton, NY 11973, USA.
  • Zhang W; Department of Chemical and Biomolecular Engineering, University of Maryland, College Park, MD 20742, USA.
  • Xu K; Battery Science Branch, Energy Science Division, U.S. Army Combat Capabilities Development Command, Army Research Laboratory, Adelphi, MD 20783, USA.
  • Yang XQ; Chemistry Division, Brookhaven National Laboratory, Upton, NY 11973, USA.
  • Lucht B; Department of Chemistry, University of Rhode Island, Kingston, RI 02881, USA.
  • Wang C; Department of Chemical and Biomolecular Engineering, University of Maryland, College Park, MD 20742, USA.
Angew Chem Int Ed Engl ; 61(35): e202205967, 2022 Aug 26.
Article in En | MEDLINE | ID: mdl-35789166
LiNix Coy Mnz O2 (x+y+z=1)||graphite lithium-ion battery (LIB) chemistry promises practical applications. However, its low-temperature (≤ -20 °C) performance is poor because the increased resistance encountered by Li+ transport in and across the bulk electrolytes and the electrolyte/electrode interphases induces capacity loss and battery failures. Though tremendous efforts have been made, there is still no effective way to reduce the charge transfer resistance (Rct ) which dominates low-temperature LIBs performance. Herein, we propose a strategy of using low-polarity-solvent electrolytes which have weak interactions between the solvents and the Li+ to reduce Rct , achieving facile Li+ transport at sub-zero temperatures. The exemplary electrolyte enables LiNi0.8 Mn0.1 Co0.1 O2 ||graphite cells to deliver a capacity of ≈113 mAh g-1 (98 % full-cell capacity) at 25 °C and to remain 82 % of their room-temperature capacity at -20 °C without lithium plating at 1/3C. They also retain 84 % of their capacity at -30 °C and 78 % of their capacity at -40 °C and show stable cycling at 50 °C.
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Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: Angew Chem Int Ed Engl Year: 2022 Document type: Article Affiliation country: United States Country of publication: Germany
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Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: Angew Chem Int Ed Engl Year: 2022 Document type: Article Affiliation country: United States Country of publication: Germany