Invention Grant
- Patent Title: Electrode with modified current collector structure and method of making the same
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Application No.: US14969508Application Date: 2015-12-15
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Publication No.: US10103386B2Publication Date: 2018-10-16
- Inventor: Xiaoguang Hao
- Applicant: NISSAN NORTH AMERICA, INC.
- Applicant Address: US TN Franklin
- Assignee: Nissan North America, Inc.
- Current Assignee: Nissan North America, Inc.
- Current Assignee Address: US TN Franklin
- Agency: Young Basile Hanlon & MacFarlane, P.C.
- Main IPC: H01M4/70
- IPC: H01M4/70 ; H01M4/66 ; H01M4/04 ; H01M10/0525 ; H01M4/134

Abstract:
Electrodes having three dimensional current collectors provide stability to the electrode structure, improved contact between active material and the current collector, and improved charge transfer. An electrode includes a three dimensional current collector including a substantially planar base and spring-like structures extending from the substantially planar base in spaced relation along the substantially planar base. Each spring-like structure has an attachment end attached to the substantially planar base and a free distal end. Active material is layered on the three dimensional current collector, the active material filled between the spring-like structures. The active material comprises alloying particles having a high specific capacity, wherein the spring-like structures deflect as the alloying particles expand in volume due to lithiation and return to an initial position as the alloying particles contract due to delithiation.
Public/Granted literature
- US20170170483A1 ELECTRODE WITH MODIFIED CURRENT COLLECTOR STRUCTURE AND METHOD OF MAKING THE SAME Public/Granted day:2017-06-15
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