Fast rechargeable all-solid-state lithium ion batteries with high capacity based on nano-sized Li2FeSiO4 cathode by tuning temperature

被引：37

作者：

Tan, Rui ^{[1
]}

Yang, Jinlong ^{[1
]}

Zheng, Jiaxin ^{[1
]}

Wang, Kai ^{[1
]}

Lin, Lingpiao ^{[1
]}

Ji, Shunping ^{[1
]}

Liu, Jun ^{[2
]}

Pan, Feng ^{[1
]}

机构：

[1] Peking Univ, Shenzhen Grad Sch, Sch Adv Mat, Shenzhen 518055, Peoples R China

[2] Pacific NW Natl Lab, Richland, WA 99352 USA

来源：

NANO ENERGY | 2015年 / 16卷

关键词：

Nano-sized Li2FeSiO4; All-solid-state lithium ion batteries; High capacity and fast recharge; TOTAL-ENERGY CALCULATIONS; POLYMER ELECTROLYTE; CONDUCTIVITY; COMPOSITE;

D O I：

10.1016/j.nanoen.2015.06.016

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：

We report all-solid-state lithium ion batteries based on nano-sized Li2FeSiO4 coated by carbon cathode materials with fast rechargeable (67.5 mA h g(-1) at 30 C) and high capacity (258.2 mA h g(-1) with 1.55 Li-ion storage at 1 C within 1.5-4.5 V) performances for the first time. By investigating and comparing with Li2FeSiO4, LiFePO4 and LiNi0.5Co0.2Mn0.3O2 cathode materials for all-solid-state lithium ion batteries, the mechanism of the higher rate performance of the Li2FeSiO4 based battery is found to be attributed to the high temperature depended diffusivity and electrical conductivity, which are increased by nearly four orders of magnitude from 300 K to 373 K, and also to permeation of the cathode/electrolyte solid-solid interface to generate the overlapping between Li2FeSiO4 particles and electrolyte. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：112 / 121

页数：10

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