Ube Industries, Inc.

Saga Prefectural Regional Industry Support Center

Hiroyoshi Nakamura

Masaki Yoshio

Shuji Tanaka

Hideya Yoshitake

Yasufumi Hideshima

Hideyuki Noguchi

A manufacturing method of spinel type manganese oxide for a lithium ion secondary cell, includes pre-firing a mixture of lithium salt including lithium carbonate, manganese oxide, and heterogeneous metal, firing the mixture at 900 to 1200&deg; C. to form a raw material, adding in the raw material at least one of crystal growth accelerators selected from the group consisting of lithium hydroxide, lithium sulfide and a mixture thereof, and firing the resulting compound at 750 to 850&deg; C. to form an excess lithium heterogeneous metal-doped spinel compound having a BET specific surface area of 0.5 m /g or less.

Manufacturing method of spinel lithium manganese oxide for lithium secondary cell

An electrolyte for a lithium secondary battery comprising an organic solvent containing an aromatic carbonate and a lithium salt dissolved in the organic solvent.

Electrolyte for lithium secondary battery

Growing community of inventors

Yame, Japan

Hiroyoshi Nakamura