Learned from shenzhen institute of advanced technology, Chinese academy of sciences that the hospital Tang Yongbing researcher and his research team pioneering a new type of high energy density of aluminium - graphite double ion battery technology the latest achievements in international energy material top periodicals of the journal of advanced energy materials.

Pioneering graphite double ion battery technology, the cost reduction of about 50%

According to the relevant person in charge of shenzhen advanced school of Chinese academy of sciences, this new type of high energy density of aluminium - graphite double ion battery, is a new kind of high efficiency and low cost energy storage batteries, compared with the traditional lithium-ion battery technology, the battery has obvious advantages, not only decrease the production cost by 40% - 40%, at the same time improve the energy density of at least 1.3-2.0 times.

It is understood that this new type of battery to traditional across the electrodes of lithium ion batteries have been adjusted, with cheap and easy graphite instead has batch used in lithium ion battery cobalt acid lithium, lithium manganese acid, three yuan or lithium iron phosphate as a battery cathode material; Use aluminum foil at the same time as the battery cathode materials and negative fluid; Electrolyte by conventional lithium salt and carbonate class of organic solvents. The working principle of the battery is different from the traditional lithium-ion batteries, charging process, the anode graphite anion intercalated reaction, and aluminum anode aluminum - lithium alloying reaction, discharge process, on the other hand. This new type of reaction mechanism not only significantly improves the working voltage of the battery (3.8-4.6 V), greatly reduced the quality of the battery at the same time, volume, and the manufacturing cost, thus improve the whole battery energy density (~ 220 Wh/kg).

Industrialization of this technology such as the implementation, the future of mobile phone may be lighter than it is now half, smart phone at the same time, we don't need one day charge, but also solved the high cost of the electric car battery and the key problems of short range. However, at present the battery technology also needs to be optimized, such as the need to further improve the cycle stability of the battery, etc.