Model	LTO-W	Not Have Carbon – coated
Model	LTO-B	Carbon-coated lithium titanate Black powder
Item	Unit	Test value		Test way
Item	Unit	LTO-W	LTO-B	Test way
D10	um	0.2~0.6	0.2~0.6	Malvern Instruments Ltd MASTERSIZER2000
D50	um	0.7~1.5	0.8~1.6	Malvern Instruments Ltd MASTERSIZER2000
D90	um	≤10	≤10	Malvern Instruments Ltd MASTERSIZER2000
Purity	%	99	99
TAP density	g/c㎡	≥0.9	≥1.0	Quantachrome Autotap DAT-3
BET	㎡/g	≤16	≤6.0	Quantachrome NOVA 1000e
First capacity	mAh/g	≥150	≥150	Battery testing
First efficiency	%	≥93	≥92	Battery testing