Designing Bidirectionally Functional Polymer Electrolytes for Stable Solid Lithium Metal Batteries

Qiang Ma; Sha Fu; An-Jun WuQi DengWei-Dong LiDan YueBing ZhangXiong-Wei WuZhen-Ling WangYu-Guo Guo

首页> 外文期刊>Advanced energy materials >Designing Bidirectionally Functional Polymer Electrolytes for Stable Solid Lithium Metal Batteries

【24h】

Designing Bidirectionally Functional Polymer Electrolytes for Stable Solid Lithium Metal Batteries

机译：Designing Bidirectionally Functional Polymer Electrolytes for Stable Solid Lithium Metal Batteries

获取原文

获取原文并翻译 | 示例

掌桥外文数据库（机构版） >>

开具论文收录证明 >>

文献代查 >>

页面导航

摘要
著录项
相关主题

摘要

The development of high energy density lithium metal batteries has beenretarded by the uncontrolled lithium dendrite formation and unstableNi-rich cathode–electrolyte interface (CEI). Herein, the bidirectionallyfunctional polymer electrolytes (BDFPE) are designed via direct UV solidificationof functional polymer species on electrode surfaces to simultaneouslyhandle the interface issues faced by anodes and cathodes. Byconstructing the BDFPE, a smooth and dendrite-free lithium depositionis enabled for Li‖Li symmetry cells after 1800 h ultralong cycling at1 mA cm~(?2) and 1 mAh cm~(?2), which are attributed to the fast ion conductivity(5.84 × 10~(?4) S cm~(?1)), high Li~+ transfer number (0.69) of BDFPE and lowinterfacial resistance between electrode and solid electrolytes. Furthermore,Li||LiNi_(0.6)Co_(0.2)Mn_(0.2)O_2 batteries demonstrate a favorable cycling and ratecapability, and a stable and phosphate-based CEI layer is constructed insitu. DFT studies reveal that the functional additives FEC and TEP participatein the interface formation. The finding provides a promising designstrategy to accommodate the anode and cathode interfaces for high energydensity lithium metal batteries.

著录项

来源
《Advanced energy materials》 |2023年第11期|2203892.1-2203892.8|共8页
作者
Qiang Ma; Sha Fu; An-Jun WuQi DengWei-Dong LiDan YueBing ZhangXiong-Wei WuZhen-Ling WangYu-Guo Guo;
展开▼
作者单位

College of Materials EngineeringHenan International Joint Laboratory of Rare Earth Composite MaterialsHenan University of EngineeringZhengzhou, Henan 451191, P. R. China;

School of Chemistry and Materials ScienceHunan Agricultural UniversityChangsha, Hunan 410125, P. R. China,Hunan Province Yin Feng New Energy Co. LtdChangsha, Hunan 410019, P. R. China;

State Key Laboratory of Utilization of Woody Oil Resource of ChinaHunan Provincial Key Laboratory of Oils and Fats Molecular Structureand FunctionHunan Academy of ForestryChangsha, Hunan 410018, P. R. ChinaCAS Key Laboratory of Molecular Nanostructure and NanotechnologyCAS Research/Education Center for Excellence in Molecular SciencesBeijing National Laboratory for Molecular Sciences (BNLMS)Institute of ChemistryChinese Academy of Sciences (CAS)Beijing 1001;

展开▼
收录信息
原文格式 PDF
正文语种英语
中图分类
关键词
electrode–electrolyte interface; functional polymer electrolytes; lithium metal anodes; lithium metal batteries; nickel-rich cathodes;

Designing Bidirectionally Functional Polymer Electrolytes for Stable Solid Lithium Metal Batteries

摘要

著录项

相关主题

期刊订阅