DataVXACS Applied Energy MaterialsPaper
journal article·2022-02-28

Highly Connective Spongy Polyimide Separators Blended with Inorganic Whiskers for High-Performance Lithium-Ion Batteries

Peilong Zhou, Dongxu Yao, Hanqin Liang, Jinwei Yin, Yongfeng Xia, Yu-Ping Zeng

ACS Applied Energy Materials· Volume 5· Issue 2
Publisher page
Source abstract

Abstract

A robust flame-retardant separator was fabricated by a nonsolvent-induced phase separation method incorporating polyimide with silicon nitride (Si3N4) whiskers. Compared with powder-blended separators, whisker-blended separators not only suppressed the agglomeration of fillers but also improved the internal connectivity of the separator. These advantages were conducive to boosting Li ions and improving the cycling stability. The whisker-blended separator exhibited a high heat endurance in air (400 °C for 1 h). Cells assembled with this separator exhibited a high initial discharge capacity (152 mA h g–1), an enhanced capacity retention of 79.4% (120 mA h g–1), and a high Coulombic efficiency of 97.5% after 300 cycles.
Source: openalex_inverted_index · Quality: baseline

Research context

Energy storage

OpenAlex topics: Advanced Battery Materials and Technologies · Advancements in Battery Materials · Dielectric materials and actuators

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

Affiliations

State Key Laboratory of High-Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China

Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China

Funding

Youth Innovation Promotion Association of the Chinese Academy of Sciences · Chinese Academy of Sciences Key Project · National Natural Science Foundation of China · Shanghai Rising-Star Program

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