DataVXACS Energy LettersPaper
journal article·2024-09-13

Activity Quenching of H2O by Donor Interaction for Lithium-Based Batteries

Zhenqiang Guo, Huicong Yang, Yukun Yan, Pei Tang, Tianyue Wang, Nan Piao, Tianzhao Hu, Ruopian Fang, Guangjian Hu, Shuo Bai, Guangjin Hou, Hui-Ming Cheng, Feng Li

ACS Energy Letters· Volume 9· Issue 9
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Source abstract

Abstract

In lithium-ion and lithium metal batteries, inevitable H 2 O molecules limit the electrochemical performance. Rather than confining or removing H 2 O molecules, it is more efficient to quench their activity and thus avoid side reactions caused by H 2 O. In this study, 2-fluoropyridine (2-FP) containing strong Lewis base active sites was selected as an electron donor molecule to interact with H 2 O to quench its activity. The 2-FP causes steric hindrance, which obstructs contact between the H 2 O and other reagents like PF 6 –, and the reactivity of H 2 O is decreased because of the reconstruction of its electron orbital. Consequently, both lithium-ion and lithium-metal cells have a prolonged cycling life, and a stable electrode–electrolyte interface is produced with greatly reduced transition-metal dissolution and negligible dendrite formation.
Source: openalex_inverted_index · Quality: baseline

Research context

Energy storage

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

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

Affiliations

School of Materials Science and Engineering, University of Science and Technology of China, Shenyang 110016, China

Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China

School of Chemical Engineering, The University of New South Wales, Sydney, NSW 2052, Australia

Shenyang King Power Tech. Co., Ltd., Shenyang 110016, China

State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China

Faculty of Materials Science and Engineering/Institute of Technology for Carbon Neutrality, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China

Funding

National Key Research and Development Program of China · China Postdoctoral Science Foundation · National Natural Science Foundation of China

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