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Regulating the Electrode-Electrolyte Interfaces of Lithium-High Nickel Batteries via a Multifunctional Additive.
Gao, Jian; Zou, Yuling; Han, Jingfang; Zheng, Zhilong; Li, Kang; Wang, Huiqun; Wu, Siyi; Liang, Hanfeng; Hong, Wenjing.
Afiliação
  • Gao J; State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Tan Kah Kee Innovation Laboratory, Xiamen University, Xiamen 361005, China.
  • Zou Y; Pen-Tung Sah Institute of Micro-Nano Science and Technology, Xiamen University, Xiamen 361005, China.
  • Han J; State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Tan Kah Kee Innovation Laboratory, Xiamen University, Xiamen 361005, China.
  • Zheng Z; State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Tan Kah Kee Innovation Laboratory, Xiamen University, Xiamen 361005, China.
  • Li K; State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Tan Kah Kee Innovation Laboratory, Xiamen University, Xiamen 361005, China.
  • Wang H; State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Tan Kah Kee Innovation Laboratory, Xiamen University, Xiamen 361005, China.
  • Wu S; State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Tan Kah Kee Innovation Laboratory, Xiamen University, Xiamen 361005, China.
  • Liang H; State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Tan Kah Kee Innovation Laboratory, Xiamen University, Xiamen 361005, China.
  • Hong W; State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Tan Kah Kee Innovation Laboratory, Xiamen University, Xiamen 361005, China.
ACS Appl Mater Interfaces ; 16(9): 11506-11515, 2024 Mar 06.
Article em En | MEDLINE | ID: mdl-38382476
ABSTRACT
Lithium metal batteries with high nickel ternary (LiNixCoyMn1-x-yO2, x ≥ 0.8) as the cathode hold the promise to meet the demand of next-generation high energy density batteries. However, the unsatisfactory stability of electrode-electrolyte interfaces limits their practical applications. In this work, N-methyl-N-trimethylsilyltrifluoroacetamide (NMTFA) is suggested as a new functional electrolyte additive to stabilize the Li∥LiNi0.9Co0.05Mn0.05O2 chemistry by forming robust and effective electrode-electrolyte interphases, namely the anode-electrolyte interphase (AEI, or conventionally called SEI) and cathode-electrolyte interphase (CEI). The NMTFA-derived SEI/CEI greatly enhances the battery performance that a capacity retention of 82.1% after 200 cycles at 1C charge/discharge is achieved, significantly higher than that without NMTFA addition (52.5%). Moreover, the NMTFA also improves the thermal stability of the electrolyte and inhibits the hydrolysis of LiPF6. This work provides new clues for the optimization of electrolyte formulation for lithium-high nickel batteries through modulating interfaces.
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Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2024 Tipo de documento: Article

Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2024 Tipo de documento: Article