Bacteria cellulose framework-supported solid composite polymer electrolytes for ambient-temperature lithium metal batteries

被引：5

作者：

Yuan, Boheng ^{[1
]}

Cong, Zhi ^{[1
]}

Cheng, Zhi ^{[1
]}

Li, Lei ^{[1
]}

Xia, Linan ^{[1
]}

Yan, Jieda ^{[1
]}

Shen, Fei ^{[1
]}

Zhao, Bin ^{[1
]}

Han, Xiaogang ^{[1
,2
]}

机构：

[1] Xi An Jiao Tong Univ, Sch Elect Engn, State Key Lab Elect Insulat & Power Equipment, Xian 710049, Shaanxi, Peoples R China

[2] Key Lab Smart Grid Shaanxi Prov, Xian 710049, Shaanxi, Peoples R China

来源：

NANOTECHNOLOGY | 2022年 / 33卷 / 41期

基金：

国家重点研发计划; 中国国家自然科学基金;

关键词：

bacteria cellulose; nanocellulose framework; composite polymer electrolyte; solid state batteries; photo polymerization; succinonitrile; GLYCOL) DIACRYLATE; IONIC-CONDUCTIVITY; FIBER;

D O I：

10.1088/1361-6528/ac64ab

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Composite polymer electrolyte (CPE) films with high room temperature ionic conductivity are urgently needed for the practical application of high-safety solid-state batteries (SSBs). Here, a flexible polymer-polymer CPE thin film reinforced by a three-dimensional (3D) bacterial cellulose (BC) framework derived from natural BC hydrogel was prepared via the in situ photo-polymerization method. The BC film was utilized as the supporting matrix to ensure high flexibility and mechanical strength. The BC-CPE attained a high room temperature ionic conductivity of 1.3 x 10(-4) S cm(-1). The Li divide BC-CPE divide Li symmetric cell manifested stable cycles of more than 1200 h. The LCO divide BC-CPE divide Li full cell attained an initial discharge specific capacity of 128.7 mAh g(-1) with 82.6% discharge capacity retention after 150 cycles at 0.2 C under room temperature. The proposed polymer-polymer CPE configuration represents a promising route for manufacturing environmental SSBs, especially since cellulose biomaterials are abundant in nature.

引用

页数：9

共 48 条

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