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1. (WO2018088320) ELECTRODE FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERIES, AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY PROVIDED WITH SAME

Pub. No.:    WO/2018/088320    International Application No.:    PCT/JP2017/039698
Publication Date: Fri May 18 01:59:59 CEST 2018 International Filing Date: Fri Nov 03 00:59:59 CET 2017
IPC: H01M 4/131
H01M 4/505
H01M 4/525
Applicants: HONDA MOTOR CO., LTD.
本田技研工業株式会社
NICHIA CORPORATION
日亜化学工業株式会社
Inventors: OGAWA Atsushi
小川 篤
SUKIGARA Toru
鋤柄 宜
MAEYAMA Hiroto
前山 裕登
KAWAMURA Soshi
川村 壮史
KOBAYASHI Kenichi
小林 謙一
Title: ELECTRODE FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERIES, AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY PROVIDED WITH SAME
Abstract:
The present invention provides an electrode for nonaqueous electrolyte secondary batteries, which enables the achievement of high output characteristics. An electrode for nonaqueous electrolyte secondary batteries, which is provided with a collector and a positive electrode active material layer that is arranged on the collector and contains a positive electrode active material. The positive electrode active material is configured to contain compound particles which have a layered structure composed of two or more transition metals, and which have an average particle diameter DSEM of from 1 μm to 7 μm (inclusive) based on the observation with an electron microscope, a ratio of the 50% particle diameter D50 in a volume-based cumulative particle size distribution to the average particle diameter DSEM, namely D50/DSEM of from 1 to 4 (inclusive), and a ratio of the 90% particle diameter D90 in the volume-based cumulative particle size distribution to the 10% particle diameter D10 in the volume-based cumulative particle size distribution, namely D90/D10 of 4 or less. The positive electrode active material layer has a void fraction of 10-45%.