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无粘合剂,自支持和高度导电的硫化物电解质,使得阳极稳定性更高
Shunsuke Kawaguchi1, Hideyasu Tanaka2, Naomi Fukiya2
1Nissan Motor Co., Ltd., 1 Natsushima-cho, Yokosuka-shi, Kanagawa, 237-8523, Japan.
Advanced materials (Deerfield Beach, Fla.)
|November 19, 2025
概括
研究人员使用热静态压力 (WIP) 开发了一种无粘合剂的硫化物基玻璃固体电解质 (SE). 这一进步使得高性能全固态电池 (ASSB) 能够提高安全性和能量密度.
科学领域:
- 材料科学 材料科学 材料科学
- 电化学 电化学 电化学
- 储能 储能 储能 储能 储能 储能
背景情况:
- 全固态电池 (ASSB) 承诺比传统的离子电池具有更高的能量密度,功率和安全性.
- 开发具有高离子导电性和稳定的固体电解质 (SE) 对ASSB实现至关重要.
研究的目的:
- 使用热静态压力 (WIP) 制造一层坚固的硫化物基玻璃SE层.
- 将SE集成到实际的ASSB设备中,并评估其性能.
主要方法:
- 通过热静态压力 (WIP) 制造无粘合剂硫化物基玻璃SE层.
- 加入玻璃基支层以进行机械增强.
- 将SE层集成到具有Ni-Co-Mn阴极和石墨阳极的13mAh级层ASSB中.
主要成果:
- 通过消除结合剂,提高了WIP过程的效率.
- 基于玻璃的支层为SE膜提供了机械强度和灵活性.
- 组装后的ASSB在25°C和20MPa堆压力下300次循环后保持了80%的容量.
结论:
- 使用WIP的无粘合剂SE制造是ASSB的可行策略.
- 开发的SE层有助于创建高性能,稳定的ASSB.
- 这项工作为实际的,高性能的ASSB实现铺平了道路.
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