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. 10, 1992
Filed:
Jul. 16, 1990
Mitsutaka Miyabayashi, Yokkaichi, JP;
Hiroshi Yui, Yokkaichi, JP;
Mistubishi Petrochemical Co., Ltd., Tokyo, JP;
Abstract
An electrode for a secondary battery, comprising a net or sheet made of a metal having laminated thereon a mixture comprising 85 to 99.9% by weight of a carbonaceous material and 0.1 to 15% by weight of an elastomer. The carbonaceous material has a hydrogen/carbon (H/C) atomic ratio of less than 0.15, a spacing (d.sub.002) of the (002) plane according to an X-ray wide angle diffraction method of 3.37 .ANG. to 3.75 .ANG., a volume average particle size of 0.5 .mu.m and a total fine pore volume of 1.5.times.10.sup.-3 ml/g or more. Lithium or a material substantially comprising lithium is carried on the carbonaceous material. The electrode has a thickness of 5 to 500 .mu.m. The resultant electrode has an high energy density, and has the requisite flexibility to obtain a coil-shaped electrode.