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US 2008/0292945 A1Published application
Battery heating system and methods of heating
OwnerAjith Kuttannair Kumar, John Butineinventors
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Abstract
A battery includes a plurality of insulated cells electrically interconnected to each other and a heat exchanger disposed above the plurality of cells to heat the battery. A system for transferring energy between a waste heat source and the battery and a method for controlling the temperature of the battery are also disclosed.
Claims26
A battery, comprising:
- a plurality of insulated cells electrically interconnected to each other;
- and
- a heat exchanger disposed above the plurality of cells to heat the battery.
A system for transferring energy to or from at least one battery, the system comprising:
- a first heat exchanger having first and second inlets in flow communication with corresponding first and second outlets, a first heat source in flow communication with the second inlet and the second outlet of the first heat exchanger;
- a second heat exchanger having first and second inlets in flow communication with corresponding first and second outlets, an outlet of a heat exchanger of the at least one battery in flow communication with the first outlets of the first and second heat exchangers, a second heat source in flow communication with the second inlet and the second outlet of the second heat exchanger;
- a pump having an inlet in flow communication with an outlet of the heat exchanger of the at least one battery;
- and
- a diverter valve connected to an outlet of the pump, the diverter valve being configured to selectively direct flow from the outlet of the pump to either the first inlet of the first heat exchanger or the first inlet of the second heat exchanger.
2 more elements
A battery, comprising:
- a plurality of cooling plates;
- a plurality of cells disposed between the plurality of cooling plates;
- a button sheet having a plurality of buttons to support the plurality of cells;
- a plurality of insulating sheets disposed between the plurality of cells;
- a plurality of bus bars, the plurality of cells being electrically interconnected by the plurality of bus bars;
- and
- means for heating the battery.
4 more elements
A method for controlling the temperature of a battery, the method comprising:
- transferring heat to the battery from a first heat source so that the temperature of the battery increases from an initial temperature to a first threshold value, the first threshold value being lower than an operating temperature range;
- and
- transferring heat to the battery from a second heat source until the temperature of the battery is within the operating temperature range.
Dependencies are inferred from the claim text.