UV-cured polymer electrolyte for LiNi0.85Co0.05Al0.1O2//Li solid state battery working at ambient temperature

Wei, Zhenyao1,2; Zhang, Zhihua1,3; Chen, Shaojie1; Wang, Zhihao1; Yao, Xiayin1; Deng, Yonghong2; Xu, Xiaoxiong1,4

2019-11

10.1016/j.ensm.2019.02.004

Energy Storage Materials   影响因子和分区

2405-8297

A novel solid state polymer electrolyte with high ionic conductivity was fabricated by "solvent-free" photopolymerization method and applied in solid state lithium battery with high-voltage cathode. The polymer structure was confirmed by FT-IR, and polymer electrolyte exhibits high ionic conductivity of 2.35x10-(-4) S cm(-1) at ambient temperature, wide electrochemical window of 0-4.63 V (vs. Li+/Li), excellent compatibility with lithium metal electrode for over 2000 h without short-circuit occurrence. Besides, LiMn0.8Fe0.2PO4//Li batteries were assembled to evaluate battery performance, delivering maximum discharge capacity of 168.7 mAh g(-1) at 0.1 C and 154.7 mAh g(-1) at 0.5 C with capacity retention of 89.72% after 450th cycle at 60 degrees C. Also, the battery operated well at ambient temperature with capacity of 124.6 mAh g(-1) and the capacity retention was 92.1% after 200 cycles. Importantly, the new polymer electrolyte is qualified to be applied in high-voltage cathode of LiNi0.85Co0.05Al0.1O2, delivering 108.8 mAh g(-1) after 100th cycle at 0.5 C at 40 degrees C. The integrated cathode with electrolyte reducing interfacial resistance contributes excellent battery performance. The results demonstrate that this solid polymer electrolyte (SPE) is a promising candidate electrolyte for high energy density solid-state lithium metal battery.

Solid polymer electrolyte In situ polymerization High-voltage cathode UV-curing

SCI ; EI

英语

通讯

Natural Science Foundation of Guangdong Province, China[2016A030311031]

Chemistry ; Science & Technology - Other Topics ; Materials Science

Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary

WOS:000488256300034

ELSEVIER

20192907206851

Cathodes ; Curing ; Electric discharges ; Ionic conduction in solids ; Ionic conductivity ; Iron compounds ; Lithium batteries ; Lithium compounds ; Manganese compounds ; Photopolymerization ; Polyelectrolytes ; Polymerization ; Solid state devices ; Solid-State Batteries ; Temperature

Thermodynamics:641.1 ; Electricity: Basic Concepts and Phenomena:701.1 ; Primary Batteries:702.1.1 ; Semiconductor Devices and Integrated Circuits:714.2 ; Chemical Reactions:802.2 ; Chemical Agents and Basic Industrial Chemicals:803 ; Organic Polymers:815.1.1 ; Polymerization:815.2

Web of Science

1.Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Ningbo 315201, Zhejiang, Peoples R China
2.Southern Univ Sci & Technol, Shenzhen 518055, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Zhejiang Funlithium New Energy Technol Co Ltd, Ningbo 315201, Zhejiang, Peoples R China

Wei, Zhenyao,Zhang, Zhihua,Chen, Shaojie,et al. UV-cured polymer electrolyte for LiNi0.85Co0.05Al0.1O2//Li solid state battery working at ambient temperature[J]. Energy Storage Materials,2019,22:337-345.

Wei, Zhenyao.,Zhang, Zhihua.,Chen, Shaojie.,Wang, Zhihao.,Yao, Xiayin.,...&Xu, Xiaoxiong.(2019).UV-cured polymer electrolyte for LiNi0.85Co0.05Al0.1O2//Li solid state battery working at ambient temperature.Energy Storage Materials,22,337-345.

Wei, Zhenyao,et al."UV-cured polymer electrolyte for LiNi0.85Co0.05Al0.1O2//Li solid state battery working at ambient temperature".Energy Storage Materials 22(2019):337-345.