20μm Li metal modified with phosphate rich polymer-inorganic interphase applied in commercial carbonate electrolyte

作     者：Lin Lin Wei Lu Feipeng Zhao Siru Chen Jia Liu Haiming Xie Yulong Liu Lin Lin;Wei Lu;Feipeng Zhao;Siru Chen;Jia Liu;Haiming Xie;Yulong Liu

作者机构：School of ChemistryNortheast Normal UniversityChangchun 130024JilinChina Key Laboratory of Functional Materials Physics and Chemistry Ministry of EducationJilin Normal UniversityChangchun 130103JilinChina College of Information TechnologyJilin Normal UniversitySiping 13600oJilinChina Department of Mechanical and Materials EngineeringWestern UniversityLondon N6A 3K7Canada 

出 版 物：《Journal of Energy Chemistry》 (能源化学（英文版）)

年 卷 期：2023年第76卷第1期

页      面：233-238,I0006页

核心收录：

学科分类：0808[工学-电气工程] 08[工学] 

基　　金：supported by the Jilin Province Science and Technology Department Program(Nos.YDZJ202201ZYTS304) the Science and Technology Project of Jilin Provincial Education Department(JJKH20220428KJ) the R&D Program of Power Batteries with Low Temperature and High Energy,Science and Technology Bureau of Changchun(19SS013) the Key Subject Construction of Physical Chemistry of Northeast Normal University the Fundamental Research Funds for the Central Universities(2412020FZ007,2412020FZ008) the National Natural Science Foundation of China(22102020) 

主　　题：Lithium metal anode Lithium phosphate Ultra-thin Lithium Solid electrolyte interphase 

摘      要：Li metal batteries are supposed to reach real application in order to fulfill the high-energy density requirement of energy storage ***,the commonly used carbonate electrolyte react with pristine Li,which result in short lifetime of lithium metal *** alleviate the side reactions of Li metal with liquid electrolyte,here we propose a phosphate rich polymer-inorganic layer as an *** to the inert properties of lithium phosphate derived from LiPO_(2)F_(2)and poly-ether,the side-reaction of carbonate solvent are *** a result,lithium metal anode sustains for 800 cycles in symmetrical cell test under 1 m A cm^(-2).Even under strict condition(20μm Li,capacity ratio N/P=2.3,electrolyte/active material=3μL mg^(-1)),coin cell test still runs stable for 150 cycles with high Coulombic ***,both LiFePO_(4)and LiNi_(0.8)Co_(0.1)Mn_(0.1)O_(2)pouch cell under 5μL m A^(-1)h^(-1)condition also exhibit good stability at 0.5 C and 2 C *** this approach,high-energy and high-power Li metal batteries are approaching to real application in the near future.