id	keyword
cet-12878	batteries
cet-12878	analysis
cet-12878	safety
cet-12878	lithium
cet-12878	risk
cet-12878	ion
cet-12878	testing
cet-12878	battery
cet-12878	reliability
cet-12878	level
cet-12878	chambers
cet-12878	ion batteries