CPC Subgroup
H01M 50/682 accommodated in battery or cell casings
Full Title
Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells > Arrangements or processes for filling or topping-up with liquids; Arrangements or processes for draining liquids from casings > Containers for storing liquids; Delivery conduits therefor > accommodated in battery or cell casings