Table 1.

Property of Li alloy elements [3]

Element	Gravimetric capacity (mAh g−1)	Volumetric capacity (mAh cm−3)	Cost	Toxicity	Safety
Si	4,200	2,400	Low	No	High
C	372	890	Low	No	Low
Ge	1,568	2,300	High	High	High
Sn	990	2,020	Low	No	High
P	2,600	2,250	Low	High	Low
Sb	660	1,890	Low	High	Low
Pb	549	1,790	Low	High	Low