DIFF Subgroup
H01M 50/30 Arrangements for facilitating escape of gases
Introduced: January 2021
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 for facilitating escape of gases
Of 8 combined children, 7 exist in both systems.
1 codes are CPC-only extensions.
IPC defines codes here since 2021.
Child Classifications
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- H01M 50/308 Detachable arrangements, e.g. detachable vent plugs or plug systems since 2021 IPC+CPC Available in IPC and CPC
- H01M 50/35 Gas exhaust passages comprising elongated, tortuous or labyrinth-shaped exhaust passages since 2021 IPC+CPC Available in IPC and CPC
- H01M 50/375 Vent means sensitive to or responsive to temperature since 2021 IPC+CPC Available in IPC and CPC
- H01M 50/383 Flame arresting or ignition-preventing means since 2021 IPC+CPC Available in IPC and CPC
- H01M 50/392 with means for neutralising or absorbing electrolyte; with means for preventing leakage of electrolyte through vent holes since 2021 IPC+CPC Available in IPC and CPC