Technical route of Japanese lithium battery enterprises -Lithium - Ion Battery Equipment
Although Japan is on the decline in the global lithium battery market, it has always firmly occupied the leading position in the high-end lithium battery market, and its lithium battery technology is also the wind vane of the entire industry. Among the Japanese lithium battery enterprises, Panasonic/Hitachi/Toshiba/Inest/GS Tangqian/Sony are the representatives. The following editor of Xianji introduces the technical routes of these seven Japanese lithium battery enterprises.(Lithium - Ion Battery Equipment)
Technical route of Japanese lithium battery enterprises
1. Technical route of Panasonic Sanyo Electric
cathode material
Lithium manganate doped with nickel, aluminum and other elements as solid solution cathode materials was studied and developed as cathode materials of batteries. At present, the cathode materials developed include lithium nickel cobalt manganate, lithium nickel cobalt aluminate, etc., which have been applied in a large scale.
In addition, in order to solve the problems of low thermal stability and safety caused by nickel oxide, nano coating was applied on the surface of cathode materials.
Negative electrode material
At present, carbon materials are mainly used, but at the same time, silicon alloy anode materials are actively developed and have been partially applied.
Panasonic said that the expansion of lithium ion battery capacity is to further meet the demand of the automobile market for this product.
In its announcement, Panasonic said that it has built battery production facilities in the automotive field in Japan, the United States and China. In order to further expand its capacity, the company has decided to produce automotive prismatic lithium-ion batteries in the Jilu factory, which is currently mainly engaged in LCD panels, to form a vertical integrated production line from the assembly process to battery assembly, which is planned to be put into use before March 2020. At the same time, Jilu Factory will continue to maintain the production of LCD panels.
While continuing to rapidly expand its battery capacity, Panasonic has helped Tesla realize full load operation of its super factory in Nevada. In the next ten years, the demand for electric vehicles will explode, and the market demand for lithium ion batteries will increase rapidly.
2. NEC-AESC Technical Route
By doping nickel, aluminum and other elements to improve the low energy density of lithium manganate material, the route is similar to Panasonic in fact. However, NEC looks bolder and is developing nickel drill alloy materials that are twice the capacity to replace manganese materials.
At present, the application of this new positive material has solved the problem of battery durability. NEC is actively developing electrode materials for power lithium batteries, which have been applied.
3. Hitachi Technology Route
Negative electrode material
At present, there are two ways to develop Hitachi cathode materials:
1. Improve on the basis of carbon materials;
2. Develop SiO-C mixture of silicon alloy materials and carbon materials.
At the same time, a new type of copper foil with high elastic limit stress and excellent processing performance is developed as electrode material.
the diaphragm
In terms of diaphragm, a ceramic diaphragm material resistant to 200 ℃ has been developed, which is a plate shaped inorganic particle coated on a porous membrane made of ordinary polyolefin. At present, this diaphragm material has been applied.
4. Toshiba technical route
Toshiba mainly improves the energy density of the battery by increasing the particle density of the cathode material. In order to optimize the performance of the manganese titanium battery, Toshiba used electrolyte with higher ignition point and diaphragm with excellent heat resistance.
5. Ines technical route
Ines firmly follows the lithium manganate route, and its lithium battery technology level is in the leading position among all Japanese enterprises. At present, the product data of the power battery provided by Inest is good, but it still needs to be tested in mass production.
6. GS Tangqian Technology Route
GS Tangqian is actively advancing on the two routes of lithium manganate and lithium iron phosphate. The main products of lithium manganate are EH6 and LEV50, and the main products of lithium iron phosphate are LEV25 and LIM40.
7. Sony Technology Route
While developing lithium iron phosphate batteries, Sony is also actively developing power batteries made of lithium cobalate+tin based alloy materials. Sony's method is to "carry out 0.1~1pm thick coating treatment" on the particle surface of lithium cobalate material. The cathode material is composed of tantalum cobalate and ternary material. At the same time, ceramic diaphragm is used to improve safety.
Technical route of Japanese lithium battery enterprises
1. Technical route of Panasonic Sanyo Electric
cathode material
Lithium manganate doped with nickel, aluminum and other elements as solid solution cathode materials was studied and developed as cathode materials of batteries. At present, the cathode materials developed include lithium nickel cobalt manganate, lithium nickel cobalt aluminate, etc., which have been applied in a large scale.
In addition, in order to solve the problems of low thermal stability and safety caused by nickel oxide, nano coating was applied on the surface of cathode materials.
Negative electrode material
At present, carbon materials are mainly used, but at the same time, silicon alloy anode materials are actively developed and have been partially applied.
Panasonic said that the expansion of lithium ion battery capacity is to further meet the demand of the automobile market for this product.
In its announcement, Panasonic said that it has built battery production facilities in the automotive field in Japan, the United States and China. In order to further expand its capacity, the company has decided to produce automotive prismatic lithium-ion batteries in the Jilu factory, which is currently mainly engaged in LCD panels, to form a vertical integrated production line from the assembly process to battery assembly, which is planned to be put into use before March 2020. At the same time, Jilu Factory will continue to maintain the production of LCD panels.
While continuing to rapidly expand its battery capacity, Panasonic has helped Tesla realize full load operation of its super factory in Nevada. In the next ten years, the demand for electric vehicles will explode, and the market demand for lithium ion batteries will increase rapidly.
2. NEC-AESC Technical Route
By doping nickel, aluminum and other elements to improve the low energy density of lithium manganate material, the route is similar to Panasonic in fact. However, NEC looks bolder and is developing nickel drill alloy materials that are twice the capacity to replace manganese materials.
At present, the application of this new positive material has solved the problem of battery durability. NEC is actively developing electrode materials for power lithium batteries, which have been applied.
3. Hitachi Technology Route
Negative electrode material
At present, there are two ways to develop Hitachi cathode materials:
1. Improve on the basis of carbon materials;
2. Develop SiO-C mixture of silicon alloy materials and carbon materials.
At the same time, a new type of copper foil with high elastic limit stress and excellent processing performance is developed as electrode material.
the diaphragm
In terms of diaphragm, a ceramic diaphragm material resistant to 200 ℃ has been developed, which is a plate shaped inorganic particle coated on a porous membrane made of ordinary polyolefin. At present, this diaphragm material has been applied.
4. Toshiba technical route
Toshiba mainly improves the energy density of the battery by increasing the particle density of the cathode material. In order to optimize the performance of the manganese titanium battery, Toshiba used electrolyte with higher ignition point and diaphragm with excellent heat resistance.
5. Ines technical route
Ines firmly follows the lithium manganate route, and its lithium battery technology level is in the leading position among all Japanese enterprises. At present, the product data of the power battery provided by Inest is good, but it still needs to be tested in mass production.
6. GS Tangqian Technology Route
GS Tangqian is actively advancing on the two routes of lithium manganate and lithium iron phosphate. The main products of lithium manganate are EH6 and LEV50, and the main products of lithium iron phosphate are LEV25 and LIM40.
7. Sony Technology Route
While developing lithium iron phosphate batteries, Sony is also actively developing power batteries made of lithium cobalate+tin based alloy materials. Sony's method is to "carry out 0.1~1pm thick coating treatment" on the particle surface of lithium cobalate material. The cathode material is composed of tantalum cobalate and ternary material. At the same time, ceramic diaphragm is used to improve safety.
