APPARATUS AND METHOD FOR CONSTANT PRESSURE REGULATION OF ONE OR MORE BATTERY CELLS
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United States of America Patent
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Issued Date -
Sep 21, 2023
app pub date -
Mar 16, 2022
filing date -
Mar 16, 2022
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Abstract
A method for constant pressure regulation of battery cells includes disposing the cells in a stacked arrangement within a battery cell placement volume of an apparatus configured to maintain a constant pressure on the cells, providing a gas pressure within a chamber of the apparatus, thereby causing an initial pressure to be applied on the battery cells, and detecting an expansion of the battery cells during a predetermined timespan using a linear displacement sensor. During the predetermined timespan, if the detected expansion is less than a maximum allowable expansion minus a predetermined measurement error, then the gas pressure within the chamber is increased, and if the detected expansion is greater than the maximum allowable expansion plus the predetermined measurement error, then the gas pressure within the chamber is decreased. An apparatus for constant pressure regulation of battery cells is also provided.
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