公开(公告)号：US20210255246A1

公开(公告)日：2021-08-19

申请号：US16973117

申请日：2019-06-05

Applicant: Samsung Electronics Co., Ltd.

Inventor： Seongho HAN ,  Bookeun OH ,  Gilho KIM ,  Junyoung OH ,  Sungun WI ,  Jaeyeon LEE

IPC: G01R31/367 ,  G06N20/00 ,  G01R31/382 ,  G01R31/371

Abstract: An electronic device according to various embodiments of the present invention includes: a memory which stores one or more mapping parameters that indicate the correlation between a voltage change amount and the state of health (SOH) of the battery; and a processor, wherein the processor can be set to: detect that an external device for charging the battery is connected to the electronic device; charge the battery by using a charging current supplied from the external device; decide on at least one mapping parameter among the one or more mapping parameters on the basis of at least the charging current; check the voltage change amount of the battery while the battery is being charged; and acquire the SOH of the battery at least partially on the basis of the at least one mapping parameter and the voltage change amount.

公开(公告)号：US20200006758A1

公开(公告)日：2020-01-02

申请号：US16444023

申请日：2019-06-18

Applicant: Samsung Electronics Co., Ltd.

Inventor： Sungun WI ,  Bookeun OH ,  Jaeyeon LEE ,  Jaeman CHOI

IPC: H01M4/36 ,  H01M10/0525 ,  H01M4/525 ,  H01M4/58 ,  H01M4/62 ,  H01M4/131

Abstract: Certain embodiments of the disclosure relate to a bimodal-type cathode active material for a lithium ion battery. The cathode active material includes a mixture of layered LiCoO2 large particles and manganese-based olivine structural small particles. The manganese-based olivine structural small particles may be represented by chemical formula LiCoxMnyFezPO4 (0≤x≤1, 0