Invention Grant
- Patent Title: Method of controlling battery state using constant-voltage discharge
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Application No.: US14860575Application Date: 2015-09-21
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Publication No.: US09472968B1Publication Date: 2016-10-18
- Inventor: Albert Liu , Samuel Yeong-Shi Chang , Wilson Liu , Steve Diamond
- Applicant: Atieva, Inc.
- Applicant Address: US CA Menlo Park
- Assignee: Atieva, Inc.
- Current Assignee: Atieva, Inc.
- Current Assignee Address: US CA Menlo Park
- Agency: Womble Carlyle Sandridge & Rice LLP
- Main IPC: H01M10/44
- IPC: H01M10/44 ; H01M10/46 ; H02J7/00
Abstract:
A battery is rendered to a consistent discharged state in a two-phase battery discharge operation. In a first of the two discharge phases, a constant discharge current is drawn from the battery until a threshold battery voltage is reached. In the second of the two discharge phases, executed after the threshold battery voltage is reached during the first-phase, a time-varying discharge current is drawn from the battery at a constant battery voltage until a threshold discharge current is reached.
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