Nissan Motor Company Limited

Tomaru Ogawa

Hideaki Horie

Osamu Shimamura

Takaaki Abe

Hiroshi Sugawara

Takanori Ito

Yasuhiko Ohsawa

Tatsuhiro Fukuzawa

Mikio Kawai

Yuuji Tanjo

An automobile cell is provided with an electric power generating element composed of a positive electrode having a positive electrode active substance layer, a negative electrode having a negative electrode active substance layer and a separator interposed between the electrodes, a cell outer sheath made of a laminate film compositely composed of polymer and metal, a positive electrode terminal lead electrically conductive with the positive electrode and extending to an outside of the cell outer sheath, and a negative electrode terminal lead electrically conductive with the negative electrode and extending to the outside of the cell outer sheath. The positive electrode and the negative electrode associated therewith via the separator defines a unit electrode, and the relationship between a thickness of the automobile cell and a sum of a thickness of the positive electrode active substance layer and a thickness of the negative electrode active substance layer of the unit electrodes, is defined such that a value obtained by dividing the former by the latter is equal to or less than 80.

Automobile cell and related method

A rechargeable lithium ion battery with high power density comprises a positive electrode; a negative electrode; and a non-aqueous electrolytic solution, in which the positive electrode includes a active material layer containing a positive electrode active material with the particle diameter of 5 &#x3bc;m or less and having the thickness at a range of 20 to 80 &#x3bc;m. Another rechargeable lithium ion battery with high power density comprises a positive electrode; a negative electrode; and a non-aqueous electrolytic solution, in which the positive electrode has two active material layers, each of which contains a positive electrode active material with a different diameter and has the thickness at a range of 20 to 30 &#x3bc;m.

Rechargeable lithium ion battery

Growing community of inventors

Yokohama, Japan

Tomaru Ogawa