LEAD-ACID BATTERY
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United States of America Patent
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Issued Date -
Mar 18, 2021
app pub date -
Dec 17, 2018
filing date -
Dec 25, 2017
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Abstract
A lead-acid battery (100) is provided with a lid (14). A communication chamber (520) is formed inside the lid (14). The communication chamber (520) is provided with an internal flow passage forming part (432, 522) forming an internal flow passage (Q) which communicates with a vent hole (321) and is located on the other side in a first direction than the vent hole (321). At least a part of the surface of the internal flow passage forming part (432, 522) has an uneven part (T).
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