The heat and cold are created by the compressing or decompressing the CO2 (our a... | Hacker News

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		wongarsu 9 days ago \| parent \| context \| favorite \| on: CO2 batteries that store grid energy take off glob... The heat and cold are created by the compressing or decompressing the CO2 (our any other gas). If one battery is heating while the other needs heat that would imply that one is charging while the other discharges, which is rarely useful in normal operation

nirvael 8 days ago [–]

Yeah you're right I didn't think that through, why would you charge a battery while discharging another, just use the energy directly.

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