Methyl Acetate Boosts the Low-Temperature Performance of Li4Ti5O12/Graphite Dual-Ion Batteries.

Mei, Weikang; Chen, Nan; Wang, Boyu; Xu, Guobao; Wang, Hongyu

Methyl Acetate Boosts the Low-Temperature Performance of Li₄Ti₅O₁₂/Graphite Dual-Ion Batteries.

Mei, Weikang; Chen, Nan; Wang, Boyu; Xu, Guobao; Wang, Hongyu.

Afiliação

Mei W; Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China.
Chen N; School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei 230026, China.
Wang B; Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China.
Xu G; School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei 230026, China.
Wang H; Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China.

Langmuir ; 40(22): 11541-11547, 2024 Jun 04.

Article em En | MEDLINE | ID: mdl-38767530

ABSTRACT

ABSTRACT

Methyl acetate (MA) is a suitable solvent for low-temperature electrolyte solutions, but its poor stability against lithium metal is a big problem. Herein, a simple and cheap solution of LiPF6 dissolved in MA was successfully employed for Li4Ti5O12/graphite dual-ion batteries (DIBs). This cell has a long cycle life with 93.1% capacity retention after 1000 cycles. Moreover, it has superior performance at low temperatures (-40 °C) compared to other reported DIBs. The storage behavior of PF6- solvated by MA in graphite cathode has been investigated in detail by in situ X-ray diffraction (XRD) in combination with electrochemical dilatometry (ECD).

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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Langmuir Assunto da revista: QUIMICA Ano de publicação: 2024 Tipo de documento: Article País de afiliação: China

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