* NGK Spark Plug joins other suppliers in developing EV
parts
* Developing oxide-based solid electrolyte for EV batteries
* Lighter, powerful, cheaper batteries needed to expand EV
use
By Naomi Tajitsu
NAGOYA, Japan, Dec 22 (Reuters) - Facing the eventual demise
of gasoline engines, the world's biggest maker of spark plugs is
turning its focus to a component it believes will be just as
vital in the coming era of electric vehicles - next-generation
all solid state batteries....
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