Übergangsmetalloxid mit einer Festen Lithium-Lösung, Kathode für eine Sekundärbatterie mit Nichtwässrigem Elektrolyt und Sekundärbatterie mit Nichtwässrigem Elektrolyt

Details

Veröffentlichungs-Nr.

EP2811559

Aktenzeichen

EP13744386

Anmeldetag

1. Februar 2013

Veröffentlichung

3. Oktober 2018

Erteilung

3. Oktober 2018

Rechtsraum

EP

IPC

H01M4/525C01G53/00H01M4/131H01M4/36H01M4/505C01G23/00C01G45/12H01M4/485

Abstract

A transition metal oxide containing solid solution lithium according to the present invention contains a transition metal oxide containing lithium, which is represented by a chemical formula: Li 1.5 [Ni a Co b Mn c [Li] d ]O 3 (where Li is lithium, Ni is nickel, Co is cobalt, Mn is manganese, O is oxygen, a, b, c and d satisfy relationships: 0 < a < 1.4; 0 ‰¤ b < 1.4; 0 < c < 1.4; 0.1 < d ‰¤ 0.4; a+b+c+d = 1.5; and 1.1 ‰¤ a+b+c < 1.4). The transition metal oxide containing lithium includes: a layered structure region; and a region changed to a spinel structure by being subjected to charge or charge/discharge in a predetermined potential range. When a ratio of an entire change from Li 2 MnO 3 with a layered structure in a region to be changed to the spinel structure to LiMn 2 O 4 with the spinel structure is defined to be 1, a spinel structure change ratio of the transition metal oxide containing lithium is 0.25 or more to less than 1.0.

Anmelder

Firmen

NISSAN MOTOR CO., LTD.
Nissan Motor Co., Ltd

Land

🇯🇵 Japan

Fachgebiete