Invention Grant
- Patent Title: Lithium ion battery heater systems and methods
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Application No.: US15790552Application Date: 2017-10-23
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Publication No.: US10069176B2Publication Date: 2018-09-04
- Inventor: Charles Bernard Beuning , Vernon Weng-Yew Chang
- Applicant: Textron Innovations Inc.
- Applicant Address: US RI Providence
- Assignee: Textron Innovations, Inc.
- Current Assignee: Textron Innovations, Inc.
- Current Assignee Address: US RI Providence
- Agency: Erise IP, P.A.
- Main IPC: H05B1/02
- IPC: H05B1/02 ; H01M10/44 ; H01M10/633 ; H01M10/615 ; H01M10/657

Abstract:
A battery heater system for a battery used in cold weather operations and methods for using the battery heater system are described. Embodiments of the battery heater system may incorporate a heater switch with an indicator, a timer circuit, a controller, a voltage meter, a temperature transducer, and a heating element. In some methods of using the device, the battery powers the heating element for a fixed cycle time based on the time to discharge the battery at a cold-soaked temperature. In other methods of using the device, the battery powers the heating element for a varying cycle time as necessary to discharge the battery to a discharge cut-off voltage value. In other methods of using the device, the heating element is operated using a duty cycle that is varied based on the battery temperature.
Public/Granted literature
- US20180108951A1 Lithium Ion Battery Heater Systems And Methods Public/Granted day:2018-04-19
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