id	keyword
cet-12841	carbon
cet-12841	batteries
cet-12841	materials
cet-12841	ion
cet-12841	lithium
cet-12841	rice
cet-12841	husk
cet-12841	capacity
cet-12841	anode
cet-12841	walnut
cet-12841	shell
cet-12841	energy
cet-12841	biomass