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:
Oct. 04, 2011
Filed:
Jun. 20, 2005
Munetoshi Yamaguchi, Hiroshima, JP;
Shinya Kagei, Hiroshima, JP;
Yoshimi Hata, Hiroshima, JP;
Mitsui Mining & Smelting Co., Ltd., Tokyo, JP;
Abstract
A positive electrode active material for a lithium battery is provided which offers high-temperature storage property and battery properties and comprises manganese dioxide having a crystal structure that exhibits an X-ray diffraction pattern in which peaks having a peak intensity ratio of not less than 0.05 with respect to the peak at 2θ=37.3°±0.5° are present at positions of 2θ=18.2°±0.5°, 19.5°±0.5°, 28.6°±0.5°, 56.6°±0.5°, 59.1°±0.5°, and 65.1°±0.5°, or further at 2θ=22.0°±1.0°, the X-ray diffraction pattern being obtained using a powder X-ray diffraction device (XRD) that uses CuKα1 rays.