Panasonic Corporation

Katayama Special Industries, Ltd.

Takuyuki Okano

Toshihiko Ikehata

Keiichi Hayashi

Misao Iguchi

A material for contact components or battery components, which includes a metal sheet having a surface layer portion containing a first metal element, the metal sheet including a Cr-containing steel plate or a surface-treated steel plate, and at least a part of the first metal element on an outermost surface of the surface layer portion being substituted by a second metal element having a nobler standard electrode potential than the first metal element, the second metal element being deposited on the outermost surface in a state of a particulate metal, oxide, or hydroxide.

Material for contact components or battery components, and battery using the same

The present invention has an objective to improve the storage characteristics and pulse discharge characteristics, especially in the high temperature region of 100&#xb0; C. or more, of a lithium battery comprising a positive electrode including manganese oxide, a negative electrode, and a non-aqueous electrolyte. To achieve this objective, the lithium battery of the present invention includes a positive electrode () including manganese oxide in mixed crystal state, a negative electrode () desorbing lithium ions during discharging, and a non-aqueous electrolyte having lithium ion conductivity. The aforementioned manganese oxide in mixed crystal state includes at least &#x3bb;-type manganese oxide and &#x3b2;-type manganese oxide. The aforementioned non-aqueous electrolyte includes at least one additive selected from the group consisting of cyclic sultone compounds and sulfone compounds.

Growing community of inventors

Osaka, Japan

Takuyuki Okano