DataVXACS Energy LettersPaper
journal article·2023-01-13

Benchmarking the Safety Performance of Organic Electrolytes for Rechargeable Lithium Batteries: A Thermochemical Perspective

Ailing Yang, Chao Yang, Kai Xie, Sen Xin, Zheng Xiong, Kaiyuan Li, Yu-Guo Guo, Ya You

ACS Energy Letters· Volume 8· Issue 1
Publisher page
Source abstract

Abstract

Developing nonflammable organic electrolytes has been regarded as one of the most valuable strategies for tackling the safety issues of rechargeable lithium batteries. However, a quantitative and precise evaluation of electrolyte safety remains challenging mostly because of the inconsistent measurement conditions and the lack of a basic reference system. In this work, we performed a benchmark study on the safety of organic electrolytes by characterizing with cone calorimetry the thermochemistry of various types of single-solvent electrolytes. An intrinsically safe organic electrolyte should show simultaneous low total heat release, low maximum heat release rate, long time to ignition, and short self-extinguishing time. Experimentally, a “cocktail” therapy combining polyfluorinated solvents and high-boiling point solvents is found to be the optimal choice for composing nonflammable electrolytes. Our results help to identify promising electrolyte components and shed light on the reasonable design of high-safety organic electrolytes for advanced rechargeable batteries.
Source: openalex_inverted_index · Quality: baseline

Research context

Energy storage

OpenAlex topics: Advanced Battery Materials and Technologies · Advanced Battery Technologies Research · Advancements in Battery Materials

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Hubei, Wuhan 430070, P. R. China

State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Hubei, Wuhan 430070, P. R. China

CAS Key Laboratory of Molecular Nanostructure and Nanotechnology, and Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences (CAS), Beijing 100190, P. R. China

International School of Materials Science and Engineering, School of Materials Science and Microelectronics, Wuhan University of Technology, Hubei, Wuhan 430070, P. R. China

Funding

Ministry of Science and Technology of the People's Republic of China · Central University Basic Research Fund of China · National Natural Science Foundation of China · Key Research and Development Project of Hubei Province

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