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Hydrogen Gas Removal Using Hydrogen Absorbents For HEV Traction Battery

IP.com Disclosure Number: IPCOM000010911D
Publication Date: 2003-Jan-30

Publishing Venue

The IP.com Prior Art Database

Abstract

Rechargeable batteries such as Ni-MH, Li-ion and PbA batteries for hybrid electric vehicle (HEV) applications produce trace amounts of hydrogen gas due to the electro-chemical processes during battery charging/discharging processes. Especially, as the battery reaches its full state of charge, over-charged current causes more liberation of hydrogen during the electrolysis reaction. As such, a typical HEV battery package requires a proper hydrogen ventilation design.