Invention Publication
- Patent Title: BATTERY SEPARATORS AND RELATED METHODS
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Application No.: US18377801Application Date: 2023-10-08
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Publication No.: US20240034023A1Publication Date: 2024-02-01
- Inventor: Lie Shi , Christopher L. Cowger , Heba K. Botros
- Applicant: Celgard, LLC
- Applicant Address: US NC Charlotte
- Assignee: Celgard, LLC
- Current Assignee: Celgard, LLC
- Current Assignee Address: US NC Charlotte
- The original application number of the division: US17560309 2021.12.23
- Main IPC: B32B3/26
- IPC: B32B3/26 ; B32B5/02 ; B32B27/12 ; B32B27/30 ; B32B27/40 ; B32B5/08 ; B32B27/20 ; B32B27/32 ; B32B7/04 ; H01M50/44 ; H01M50/403 ; H01M50/423 ; H01M50/417 ; H01M50/489 ; H01M50/491 ; H01M50/42 ; H01M50/426 ; H01M50/454 ; H01M50/414 ; H01M50/451 ; H01M50/457

Abstract:
Battery separators and methods are disclosed. The battery separator may be used in a lithium battery. The separator may include a microporous membrane laminated to a coated nonwoven. The coating may contain a polymer and optionally, a filler or particles. The methods may include the steps of: unwinding the microporous membrane and the nonwoven, laminating the nonwoven and microporous membrane, and coating the nonwoven before or after lamination.
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