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1. (WO2017057134) POSITIVE ELECTRODE FOR LITHIUM-ION SECONDARY CELL, AND LITHIUM-ION SECONDARY CELL

Pub. No.:    WO/2017/057134    International Application No.:    PCT/JP2016/077858
Publication Date: Fri Apr 07 01:59:59 CEST 2017 International Filing Date: Thu Sep 22 01:59:59 CEST 2016
IPC: H01M 4/131
H01M 4/505
H01M 4/525
H01M 4/62
H01M 10/052
H01M 10/0566
Applicants: NEC ENERGY DEVICES, LTD.
NECエナジーデバイス株式会社
Inventors: FUJISAWA, Ai
藤澤 愛
Title: POSITIVE ELECTRODE FOR LITHIUM-ION SECONDARY CELL, AND LITHIUM-ION SECONDARY CELL
Abstract:
A positive electrode for a lithium-ion secondary cell including a collector and a positive electrode active material layer on the collector, wherein: the positive electrode active material layer includes a positive electrode active material, a conductive aid, and a binder; the positive electrode active material layer has a porosity of 20% or less; the positive electrode active material includes a lithium composite oxide; the positive electrode active material has a BET specific surface area of 0.1-1 m2/g, at least some of the conductive aid comprises spherical amorphous carbon particles; and the conductive aid content is 1.8-6 mass% in relation to the positive electrode active material.