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1. (WO2018203522) POWER STORAGE DEVICE COMPOSITION, POWER STORAGE DEVICE SEPARATOR USING POWER STORAGE DEVICE COMPOSITION, AND POWER STORAGE DEVICE

Pub. No.:    WO/2018/203522    International Application No.:    PCT/JP2018/017185
Publication Date: Fri Nov 09 00:59:59 CET 2018 International Filing Date: Sat Apr 28 01:59:59 CEST 2018
IPC: H01M 2/16
C01G 23/00
H01G 11/52
Applicants: TAYCA CORPORATION
テイカ株式会社
NIPPON CHEMI-CON CORPORATION
日本ケミコン株式会社
Inventors: SUGIHARA Ryosuke
杉原 良介
WATANABE Keiichi
渡邉 桂一
TSUMEDA Satoru
爪田 覚
ISHIMOTO Shuichi
石本 修一
Title: POWER STORAGE DEVICE COMPOSITION, POWER STORAGE DEVICE SEPARATOR USING POWER STORAGE DEVICE COMPOSITION, AND POWER STORAGE DEVICE
Abstract:
[Problem] There is demand for a power storage device composition that: compared to past lithium compounds, can suppress development of conductivity caused by blue discoloration (reduction), even when used in a reducing atmosphere; and can inhibit the generation of gases, such as carbon dioxide gas, hydrogen gas, and fluoride gas, that has been a problem in past power storage devices during use and with aging. [Solution] This power storage device composition is characterized by including, as a principal component, Li2TiO3 that has an x-ray diffraction pattern for which the intensity ratio (A/B) of the peak intensity (A) at a diffraction angle of 2θ=18.4±0.1° and the peak intensity (B) at a diffraction angle of 2θ=43.7±0.1° is at least 1.10.