Dendrite-free all-solid-state lithium batteries with lithium phosphorous oxynitride-modified lithium metal anode and composite solid electrolytes

被引：70
|
作者：
Wang, Chunhua [1 ,2 ,3 ]
Bai, Guoliang [2 ]
Yang, Yifu [1 ]
Liu, Xingjiang [3 ]
Shao, Huixia [1 ]
机构：
[1] Wuhan Univ, Coll Chem & Mol Sci, Hubei Key Lab Electrochem Power Sources, Wuhan 430072, Hubei, Peoples R China
[2] Anqing Normal Univ, Anhui Prov Key Lab Optoelect & Magnetism Funct Ma, Key Lab Funct Coordinat Cpds, Anhui Higher Educ Inst, Anqing 246011, Peoples R China
[3] Tianjin Inst Power Sources, Natl Key Lab Power Sources, Tianjin 300381, Peoples R China
来源：
NANO RESEARCH | 2019年 / 12卷 / 01期
基金：
中国国家自然科学基金;
关键词：
lithium metal anode; lithium dendrites; Li phosphorous oxynitride (LiPON); composite solid electrolyte; all-solid-state lithium battery; THIN-FILM BATTERY; CYCLING BEHAVIOR; INTERFACE; ENERGY; CONDUCTIVITY; ELECTRODES; DEPOSITION;
D O I：
10.1007/s12274-018-2205-7
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Dendrite formation on lithium (Li) metal anode is a key issue which hinders the development of rechargeable Li battery seriously. A novel method for suppressing Li dendrites via using Li phosphorous oxynitride (LiPON) modified Li anode and Li1.5Al0.5Ge1.5(PO4)(3)-poly(ethylene oxide)(Li bistrifluoromethane-sulfonimide) (LAGP-PEO(LiTFSI)) composite solid electrolyte in all-solid-state Li battery is proposed, and the effect of the thickness of LiPON on Li anode performance is also studied. LiPON film with a thickness of 500 nm exhibits satisfactory interface property between Li metal anode and the LAGP-PEO(LiTFSI) solid electrolyte. The LiPON film provides a uniform Li+ flux across the interface and effectively inhibits the formation of Li dendrites in all-solid-state Li batteries. The assembled all-solid-state Li cell Li(LiPON)/LAGPPEO( LiTFSI)/LiFePO4 delivers an initial discharge capacity of 152.4 mAhg(-1) and exhibits good cycling stability and rate performance at 50 degrees C.
引用
收藏
页码：217 / 223
页数：7
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