Jian Qing Dong

Author:

Jian Dong

ISBN #:

0412780100

Author:

Jian Dong

ISBN #:

0791815455

US Patent:

20220367842, Nov 17, 2022

Filed:

May 13, 2021

Appl. No.:

17/319654

Inventors:

- Cockeysville MD, US
Frank CAO - North Potomac MD, US
Tyler RUFF - Hanover PA, US
Jian DONG - Lutherville Timonium MD, US
Carine MARGEZ STEINWAY - Baltimore MD, US
Thomas GRESZLER - Phoenix MD, US
Kamen NECHEV - Baldwin MD, US

Assignee:

SAFT AMERICA - Cockeysville MD

International Classification:

H01M 4/04
H01M 10/0525
H01M 4/58
H01M 10/44

Abstract:

Pre-lithiation methods using lithium vanadium fluorophosphate (e.g., LiVPOF and its derivatives) (“LVPF”) as a cathode active material in a lithium-ion secondary battery. The pre-lithiation methods include compensating for an expected loss of active lithium by selecting LVPF having a specific pre-lithiated chemistry (or a blend of LVPF selected to have a specific pre-lithiated chemistry) and selecting a total amount of the pre-lithiated LVPF. The pre-lithiation methods may include initially charging the lithium-ion secondary battery at the lower of the two charge/discharge plateaus of LVPF to release active lithium.