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:
May. 08, 2018
Filed:
Sep. 23, 2016
Samsung Electronics Co., Ltd., Suwon-si, Gyeonggi-do, KR;
Yong Hee Cho, Seoul, KR;
Seong Woon Booh, Yongin-si, KR;
Changhoon Jung, Seoul, KR;
Eun Seog Cho, Yongin-si, KR;
SAMSUNG ELECTRONICS CO., LTD., Gyeonggi-Do, KR;
Abstract
A battery assembly including: at least one rechargeable lithium battery including a negative electrode including a silicon-containing negative active material selected from silicon, a silicon-carbon composite, and a combination thereof, and a positive electrode including a positive active material; a circuit board electrically connected to the battery assembly; and an outer terminal electrically connecting the battery assembly to an outer power or an outer load, wherein the circuit board includes a charge/discharge element for charging and discharging the battery assembly and a charge/discharge controller electrically connected to the battery assembly and the charge/discharge element, wherein the charge/discharge controller controls the charge and discharge of the battery assembly, and wherein a discharge cut-off voltage of the charge/discharge controller is predetermined as a voltage when LiSi present in the negative electrode during the discharge has an x value of less than or equal to about 1.25.