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:
Aug. 13, 2024
Filed:
Feb. 20, 2019
Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;
Satoshi Nishitani, Osaka Fu, JP;
Masaki Deguchi, Hyogo Ken, JP;
Abstract
Disclosed is a non-aqueous electrolyte secondary battery including: a positive electrode; a negative electrode; and an electrolyte solution. The negative electrode contains a negative electrode active material that is capable of electrochemically absorbing and desorbing lithium. The negative electrode active material contains a lithium silicate phase and silicon particles that are dispersed in the lithium silicate phase. The lithium silicate phase is an oxide phase that contains lithium, silicon, and oxygen. The atomic ratio O/Si of oxygen relative to silicon in the lithium silicate phase is greater than 2 and less than 4. The electrolyte solution contains a halogenated benzene. The amount of halogenated benzene contained in the electrolyte solution is 1 ppm or more and 500 ppm or less.