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. 04, 2025
Filed:
Nov. 12, 2020
Lg Energy Solution, Ltd., Seoul, KR;
Il-Hong Kim, Daejeon, KR;
LG ENERGY SOLUTION, LTD., Seoul, KR;
Abstract
A secondary battery including a positive electrode, a negative electrode and a separator interposed between the negative electrode and the positive electrode. The negative electrode includes: a negative electrode current collector; and a negative electrode active material layer on at least one surface of the negative electrode current collector. The negative electrode active material layer includes a mixed active material comprising a carbonaceous active material and a Si-based active material. The secondary battery is controlled by setting a lower limit of state-of-charge (SOC) during operation of the secondary battery depending on a weight mixing ratio of the Si-based active material to the carbonaceous active material. The capacity ratio of the Si-based active material to the carbonaceous active material.