lithium carbonate battery grade is especially used to manufacture anode material for lithium-ion battery and electrolyte. it can also be used to manufacture color kinescope and glass shell of high resolution rearprojection tv, as well as being used in manufacturing phonics grade and photics grade monocrystal. the main content-lithium carbonate is no less than 99.5％, specifications as per chinese standard: ys/t 582-2006 as following: li2co3 content min 99.5% impurity content max na 0.025% k 0.001% fe 0.002% ca 0.005% cu 0.001% pb 0.001% ni 0.003% mn 0.001% zn 0.001% al 0.005% mg 0.01% si 0.005% so42- 0.08% cl- 0.005% h2o 0.40% package: sealed off by plastic bag inside and plastic woven bag seamed up outside with 20kg (net weight) per bag