BATTERY AND ELECTRIC DEVICE

A battery includes: a battery cell provided with a first pressure relief mechanism; a housing provided with an inner cavity; a first separator plate mounted in the housing to separate the inner cavity into a first chamber and a second chamber, where the battery cell is mounted in the first chamber, the first separator plate is provided with a through hole, the first chamber is communicated with the second chamber through the through hole, and the first pressure relief mechanism is communicated with the through hole to allow an ejected substance ejected from the battery cell to flow into the second chamber; and a cooling device mounted in the second chamber, where the cooling device is configured to cool the ejected substance flowing into the second chamber.