Invention Grant
- Patent Title: Laser ablation for manufacture of battery cells
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Application No.: US15705430Application Date: 2017-09-15
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Publication No.: US10586974B2Publication Date: 2020-03-10
- Inventor: Thomas V. Weigman , Svetlana Lukich , Ann Marie Sastry , Chia-Wei Wang , Yen-Hung Chen , Xiangchun Zhang , HyonCheol Kim , Myoungdo Chung
- Applicant: Dyson Technology Limited
- Applicant Address: GB Malmesbury, Wiltshire
- Assignee: Dyson Technology Limited
- Current Assignee: Dyson Technology Limited
- Current Assignee Address: GB Malmesbury, Wiltshire
- Agency: Morrison & Foerster LLP
- Main IPC: H01M4/04
- IPC: H01M4/04 ; H01M10/058 ; H01M4/131 ; H01M10/52 ; H01M10/04 ; H01M4/1391 ; H01M10/0562 ; H01M10/052 ; H01M4/583 ; H01M4/58 ; H01M4/48
Abstract:
A pulsed laser can be used to ablate the desired thin film layers at a desired location, to a desired depth, without impinging significantly upon other layers. The battery cell layer order may be optionally optimized to aid in ease of laser ablation. The laser process can isolate layers of thin film within sufficient proximity to at least one edge of the final thin film battery stack to optimize active battery area.
Public/Granted literature
- US20190088954A1 LASER ABLATION FOR MANUFACTURE OF BATTERY CELLS Public/Granted day:2019-03-21
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