DataVXACS Applied Materials & InterfacesPaper
journal article·2020-05-27

Highly Conductive Polymeric Ionic Liquid Electrolytes for Ambient-Temperature Solid-State Lithium Batteries

Fengrui Zhang, Yiyang Sun, Zhicheng Wang, Daosong Fu, Jing Li, Jianchen Hu, Jingjing Xu, Xiaodong Wu

ACS Applied Materials & Interfaces· Volume 12· Issue 21
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Source abstract

Abstract

High-energy density solid-state lithium metal batteries are expected to become the next generation of energy storage devices. Polymeric ionic liquid-based solid polymer electrolytes (PIL-based SPEs) are an attractive choice among electrolytes, but their ionic conductivities are generally insufficient due to numerous crystallized polymer regions. To achieve higher conductivity, we use facile copolymerization of an ionic liquid (IL) monomer and poly(ethylene glycol) diacrylate monomer to obtain in situ plasticized polymer chains. The resultant PIL-based SPE exhibits decreased crystallinity, a lower glass-transition temperature, and improved ionic conductivity (1.4 × 10–4 S cm–1 at 30 °C). A solid-state LiFePO4 (LFP)|Li battery based on the SPE displays a high reversible specific capacity of 140 mA h g–1 at 0.2C at 25 °C and excellent cycling stability, accompanying high Coulombic efficiency of approximately 100%. The in situ plasticized PIL-based SPE is significant in developing solid-state Li metal battery systems.
Source: openalex_inverted_index · Quality: baseline

Research context

Energy storagePolymersCeramics & glasses

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

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

Affiliations

School of Nano-Tech and Nano-Bionics, University of Science and Technology of China, Hefei 230026, China

i-Lab, Suzhou Institute of Nano-Tech and Nano-Bionics (SINANO), Chinese Academy of Sciences, Suzhou 215123, China

National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Research Center of Cooperative Innovation for Functional Organic/Polymer Material Micro/Nanofabrication, Soochow University, Suzhou 215123, Jiangsu, China

Nantong Textile & Silk Industrial Technology Research Institute, Building D1, No. 266 Xinshiji Ave, Jianghai Intellectual Park, Tongzhou, Nantong 226300, Jiangsu, China

Funding

Ministry of Science and Technology of the People's Republic of China · Nantong Science and Technology Bureau · National Natural Science Foundation of China

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