The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 11, 2014
Filed:
Jul. 02, 2010
Shin Takahashi, Mito, JP;
Kazuhiro Yoshida, Narita, JP;
Kazushige Kohno, Hitachi, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
An object of the invention is to reduce the charging overvoltage by using a positive electrode member which does not contain a carbon material that causes the generation of lithium carbonate (LiCO), and which comprises a metal porous material, thereby suppressing the formation of lithium carbonate (LiCO). The metal air secondary battery of the invention is characterized by having a negative electrode member which has metal ions occluded therein and emits metal ions, a positive electrode member which ionizes oxygen, and a separator which is impregnated with an electrolyte and disposed between the negative electrode member and the positive electrode member, wherein the carbon weight in the total weight of a carrier, a catalyst, and a binder constituting the positive electrode member is 50% or less.