Non-Flammable Electrolyte Enables High-Voltage and Wide-Temperature Lithium-Ion Batteries with Fast Charging
- Authors
- Zou, Yeguo; Ma, Zheng; Liu, Gang; Li, Qian; Yin, Dongming; Shi, Xuejian; Cao, Zhen; Tian, Zhengnan; Kim, Hun; Guo, Yingjun; Sun, Chunsheng; Cavallo, Luigi; Wang, Limin; Alshareef, Husam N.; Sun, Yang Kook; Ming, Jun
- Issue Date
- Feb-2023
- Publisher
- WILEY-V C H VERLAG GMBH
- Keywords
- Fast-Charging; Lithium-Ion Batteries; Nonflammable High-Voltage Electrolyte; Solvation Structure; Wide-Temperature
- Citation
- ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, v.62, no.8, pp.1 - 13
- Indexed
- SCIE
SCOPUS
- Journal Title
- ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
- Volume
- 62
- Number
- 8
- Start Page
- 1
- End Page
- 13
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/182397
- DOI
- 10.1002/anie.202216189
- ISSN
- 1433-7851
- Abstract
- Electrolyte design has become ever more important to enhance the performance of lithium-ion batteries (LIBs). However, the flammability issue and high reactivity of the conventional electrolytes remain a major problem, especially when the LIBs are operated at high voltage and extreme temperatures. Herein, we design a novel non-flammable fluorinated ester electrolyte that enables high cycling stability in wide-temperature variations (e.g., −50 °C–60 °C) and superior power capability (fast charge rates up to 5.0 C) for the graphite||LiNi0.8Co0.1Mn0.1O2 (NCM811) battery at high voltage (i.e., >4.3 V vs. Li/Li+). Moreover, this work sheds new light on the dynamic evolution and interaction among the Li+, solvent, and anion at the molecular level. By elucidating the fundamental relationship between the Li+ solvation structure and electrochemical performance, we can facilitate the development of high-safety and high-energy-density batteries operating in harsh conditions.
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