US 12,113,225 B2
Watertight marine battery
Steven J. Gonring, Slinger, WI (US)
Assigned to Brunswick Corporation, Mettawa, IL (US)
Filed by Brunswick Corporation, Mettawa, IL (US)
Filed on Jul. 23, 2021, as Appl. No. 17/383,979.
Claims priority of provisional application 63/172,895, filed on Apr. 9, 2021.
Prior Publication US 2022/0328912 A1, Oct. 13, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H01M 50/141 (2021.01); H01M 10/42 (2006.01); H01M 10/48 (2006.01); H01M 50/342 (2021.01)
CPC H01M 50/141 (2021.01) [H01M 10/42 (2013.01); H01M 10/486 (2013.01); H01M 50/3425 (2021.01); H01M 2220/20 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A marine battery system configured to provide energy to a marine vessel load, comprising:
a main enclosure body;
an auxiliary enclosure body coupled to the main enclosure body to define a sealed battery volume, the auxiliary enclosure body configured to perform a pressure accommodation action responsive to an increase in a temperature within the sealed battery volume;
a battery disposed within the sealed battery volume;
a temperature sensor configured to detect temperature within the sealed battery volume and a pressure sensor configured to detect pressure within the sealed battery volume;
a controller configured to:
receive temperature information from the temperature sensor and pressure information from the pressure sensor; and
detect an enclosure breach, wherein the enclosure breach comprises an opening in the sealed battery volume, based only on a comparison of a current pressure and a current temperature within the sealed battery volume either to an expected pressure for the sealed battery volume at the current temperature or an expected temperature for the sealed battery volume at the current pressure, accounting for the pressure accommodation action.