• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Advanced functional materials >In Situ Cross-Linked Plastic Crystal Electrolytes for Wide-Temperature and High-Energy-Density Lithium Metal Batteries
【24h】

In Situ Cross-Linked Plastic Crystal Electrolytes for Wide-Temperature and High-Energy-Density Lithium Metal Batteries

机译：In Situ Cross-Linked Plastic Crystal Electrolytes for Wide-Temperature and High-Energy-Density Lithium Metal Batteries

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相关主题

摘要

The development of high-energy-density lithium metal batteries hasbeen significantly hampered mainly due to the poor electrolyte–electrodecompatibility, narrow operating temperature range, and stringent safetyconcerns of conventional electrolytes. Here, an in situ cross-linked plasticcrystal-based electrolyte (CPCE) with an optimized composition design isproposed. Based on the interaction of succinonitrile (SN) and ethoxylatedtrimethylolpropane triacrylate (ETPTA) with polar carbonyl groups, CPCEdelivers well-tuned energy levels and a concentrated coordination structure,leading to an improved electrochemical window and stable electrode–electrolyte interface. In addition, the crystallization of SN molecules isalso inhibited, ensuring suitable ion migration in bulky CPCE over a widetemperature range. Moreover, both the nonleakage of cross-linked ETPTAand the nonflammability of the plastic crystal electrolyte (PCE) furtherreinforce the safety of CPCE. As a result, the well-designed CPCE achieveshigh ion conductivity with a wide electrochemical window (≈5.4 V vsLi~+/Li) and a broad operating temperature range (?20 to 100 ℃). It alsodelivers dendrite-free lithium plating with high Coulombic efficiency of up to≈99.1%. The Cu|CPCE|LiNi_(0.8)Co_(0.1)Mn_(0.1)O_2 anode-free pouch cell exhibitshigh energy density (≈1520 Wh L~(-1)) and high safety during abuse tests.This study paves a new pathway to realize the practical application ofhigh-energy-density lithium metal battery energy storage systems.

著录项

获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号