Anode materials of lithium ion batteries silicon nanopowders
Recently, the efficient energy conversion is the center of various energy conversion systems research, such as solar batteries, fuel cells, capacitors, etc.Recycled lithium ion battery is one of the chemical energy storage devices, and it is dominant in the development of portable mobile power supply.Traditional lithium-ion battery anode materials are usually carbon material, which is low specific capacity, cannot satisfy the needs of developing high-energy portable mobile power supply, by now silicon nanopowders get great attention due to the huge lithium storage capacity。
Lithium and silicon can form alloy:xLi+Si↔LixSi
Under different conditions, lithium and silicon reaction can get different alloy products, such as Li12Si17, Li13Si4, Li22Si5, Li7Si3. LI4SI forms when the silicon embedded lithium alloy,and its theoretical specific capacity up to 4200mAh/g.
Silicon nanopowders sizes includes 30-50nm, 100nm,200nm,with brown yellow to brown black color, the high activity powders should be kept sealed in a dry, cool environment, should not be exposed to air, prevent oxidated with damp.
Silicon nanopowders for anode materials of lithium ion batteries use is available in small quantity for researchers and in bulk order for industry groups.if you're interested in buying and enquirying the powders, pls contact us freely at hwnano@xuzhounano.com. thank you.
