logo

For the Inventor, By the Inventor

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.:

US 9893351 B1

PDFFull Text
Date of Patent:
Feb. 13, 2018

Filed:

Dec. 21, 2015

Battery, negative electrode active material, and electric tool

Applicant:

Sony Corporation, Tokyo, JP;

Inventors:

Takakazu Hirose, Fukushima, JP;

Kenichi Kawase, Fukushima, JP;

Takashi Fujinaga, Fukushima, JP;

Isao Koizumi, Fukushima, JP;

Toshio Nishi, Fukushima, JP;

Assignee:

Murata Manufacturing Co., Ltd., Kyoto, JP;

Attorney:

K&L Gates LLP

Primary Examiner:

Kenneth J Douyette

Int. Cl.
CPC ...
H01M 4/38 (2006.01); H01M 4/36 (2006.01); H01M 4/48 (2010.01); H01M 4/46 (2006.01); H01M 4/62 (2006.01); H01M 10/0525 (2010.01); H01M 4/131 (2010.01); H01M 4/134 (2010.01); H01M 10/48 (2006.01); H01M 4/525 (2010.01); H01M 4/583 (2010.01); H01M 4/133 (2010.01); H01M 4/485 (2010.01); H01M 4/505 (2010.01); H01M 4/54 (2006.01); H01M 4/587 (2010.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 4/38 (2013.01); H01M 4/131 (2013.01); H01M 4/133 (2013.01); H01M 4/134 (2013.01); H01M 4/364 (2013.01); H01M 4/366 (2013.01); H01M 4/381 (2013.01); H01M 4/382 (2013.01); H01M 4/386 (2013.01); H01M 4/387 (2013.01); H01M 4/463 (2013.01); H01M 4/48 (2013.01); H01M 4/485 (2013.01); H01M 4/505 (2013.01); H01M 4/525 (2013.01); H01M 4/54 (2013.01); H01M 4/583 (2013.01); H01M 4/587 (2013.01); H01M 4/622 (2013.01); H01M 4/623 (2013.01); H01M 4/626 (2013.01); H01M 10/0525 (2013.01); H01M 10/48 (2013.01); H01M 2004/021 (2013.01); H01M 2004/027 (2013.01); H01M 2004/028 (2013.01); H01M 2220/30 (2013.01); Y02E 60/122 (2013.01); Y02T 10/7011 (2013.01);
Abstract

A battery is provided including a positive electrode; a negative electrode including a first negative electrode active material; and an electrolytic solution, wherein the first negative electrode active material includes a core portion having a core portion surface, wherein the core portion has a median diameter of 0.3 μm to 20 μm, and a covering portion that covers at least part of the core portion surface, wherein the covering portion comprises at least Si, O and at least of one element M1 selected from Li, carbon (C), Mg, Al, Ca, Ti, Cr, Mn, Fe, Co, Ni, Cu, Ge, Zr, Mo, Ag, Sn, Ba, W, Ta, Na, and K.

Find Patent Forward Citations

Loading…