Invention Grant
- Patent Title: Dimensional constraints for three-dimensional batteries
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Application No.: US17335725Application Date: 2021-06-01
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Publication No.: US11444310B2Publication Date: 2022-09-13
- Inventor: Robert S. Busacca , Ashok Lahiri , Murali Ramasubramanian , Bruno A. Valdes , Gardner Cameron Dales , Christopher J. Spindt , Geoffrey Matthew Ho , Harrold J. Rust, III , James D. Wilcox , John F. Varni , Kim Han Lee , Nirav S. Shah , Richard J. Contreras , Lynn Van Erden , Vladimir Dioumaev
- Applicant: Enovix Corporation
- Applicant Address: US CA Fremont
- Assignee: Enovix Corporation
- Current Assignee: Enovix Corporation
- Current Assignee Address: US CA Fremont
- Agency: Bryan Cave Leighton Paisner LLP
- Main IPC: H01M10/02
- IPC: H01M10/02 ; H01M4/02 ; H01M10/052 ; H01M10/0525 ; H01M10/054 ; H01M10/058 ; H01M10/0585 ; H01M10/44

Abstract:
A secondary battery is provided for cycling between a charged and a discharged state, the secondary battery including a battery enclosure, an electrode assembly, carrier ions, a non-aqueous liquid electrolyte within the battery enclosure, and a set of electrode constraints. The set of electrode constraints includes a primary constraint system having first and second primary growth constraints and at least one primary connecting member, the first and second primary growth constraints separated from each other in the longitudinal direction, wherein the primary constraint array restrains growth of the electrode assembly in the longitudinal direction such that any increase in the Feret diameter of the electrode assembly in the longitudinal direction over 20 consecutive cycles of the secondary battery is less than 20%. The set of electrode constraints further includes a secondary constraint system having first and second secondary growth constraints connected by at least one secondary connecting member, wherein the secondary constraint system at least partially restrains growth of the electrode assembly in a second direction upon cycling of the secondary battery.
Public/Granted literature
- US20220158220A1 DIMENSIONAL CONSTRAINTS FOR THREE-DIMENSIONAL BATTERIES Public/Granted day:2022-05-19
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