Technical Route of Japan Lithium Battery Company -Lithium - Ion Battery Equipment
1. Overview of the technical route of Japanese lithium battery company
2. Details of the technical route of each company
1 Panasonic-Sanyo Electric
Positive electrode material
Research and development of lithium manganate doped with nickel, aluminum and other elements of solid solution cathode material, as the cathode material of the battery. At present, the developed cathode materials include nickel-cobalt lithium manganate, nickel-cobalt lithium aluminate, etc., and have been applied on a large scale.(Lithium - Ion Battery Equipment)
In addition, in order to solve the problems of low thermal stability and safety caused by nickel oxide, nano-coating treatment was carried out on the surface of the cathode material.
Anode material
At present, carbon materials are mainly used, but at the same time, silicon alloy anode materials are actively developed, and some applications have been realized.
2NEC-AESC
By doping nickel, aluminum and other elements to improve the low energy density of lithium manganate materials, in fact, the route is similar to that of Panasonic. However, NEC looks a little bolder and is developing a nickel-diamond alloy with twice the capacity to replace the manganese material.
At present, the application of this new cathode material has solved the problem of battery durability. NEC is actively developing special electrode materials for power lithium batteries, which have already been applied.
San Hitachi
Anode material
There are currently two routes for the development of Hitachi anode materials:
1. Improvement on the basis of carbon materials;
2. Develop a mixture of silicon alloy materials and carbon materials, SiO-C.
At the same time, a new type of copper foil with high proof stress and excellent processability is developed as an electrode material.
diaphragm
In terms of diaphragm, a ceramic diaphragm material resistant to high temperature of 200°C has been developed. Plate-shaped inorganic particles are coated on a porous film made of ordinary polyolefin (Polyolefin). At present, the diaphragm material has been applied.
4 Toshiba
Toshiba mainly increases the energy density of the battery by increasing the particle density of the positive electrode material. To optimize the performance of manganese-titanium batteries, Toshiba uses an electrolyte with a high flash point and a separator with excellent heat resistance.
5 British resistance
Inexis firmly takes the lithium manganate route, and its lithium battery technology level is in the leading ranks among all Japanese companies. At present, the product data of the power lithium battery supplied by Intex is good, but it still needs to be tested by mass production.
6GS Yuasa
GS Yuasa is actively advancing in both the lithium manganate and lithium iron phosphate routes. The important products of lithium manganate are EH6 and LEV50, and the important products of lithium iron phosphate are LEV25 and LIM40.
7 Sony
While developing lithium iron phosphate batteries, Sony is also actively developing lithium cobalt oxide + tin-based alloy materials for power lithium batteries. Sony's approach is to "coat the surface of the lithium cobalt oxide material with a thickness of 0.1~1pm". The positive electrode material is made of a mixture of tantalum cobalt oxide and ternary materials, and a ceramic diaphragm is used to improve safety.
2. Details of the technical route of each company
1 Panasonic-Sanyo Electric
Positive electrode material
Research and development of lithium manganate doped with nickel, aluminum and other elements of solid solution cathode material, as the cathode material of the battery. At present, the developed cathode materials include nickel-cobalt lithium manganate, nickel-cobalt lithium aluminate, etc., and have been applied on a large scale.(Lithium - Ion Battery Equipment)
In addition, in order to solve the problems of low thermal stability and safety caused by nickel oxide, nano-coating treatment was carried out on the surface of the cathode material.
Anode material
At present, carbon materials are mainly used, but at the same time, silicon alloy anode materials are actively developed, and some applications have been realized.
2NEC-AESC
By doping nickel, aluminum and other elements to improve the low energy density of lithium manganate materials, in fact, the route is similar to that of Panasonic. However, NEC looks a little bolder and is developing a nickel-diamond alloy with twice the capacity to replace the manganese material.
At present, the application of this new cathode material has solved the problem of battery durability. NEC is actively developing special electrode materials for power lithium batteries, which have already been applied.
San Hitachi
Anode material
There are currently two routes for the development of Hitachi anode materials:
1. Improvement on the basis of carbon materials;
2. Develop a mixture of silicon alloy materials and carbon materials, SiO-C.
At the same time, a new type of copper foil with high proof stress and excellent processability is developed as an electrode material.
diaphragm
In terms of diaphragm, a ceramic diaphragm material resistant to high temperature of 200°C has been developed. Plate-shaped inorganic particles are coated on a porous film made of ordinary polyolefin (Polyolefin). At present, the diaphragm material has been applied.
4 Toshiba
Toshiba mainly increases the energy density of the battery by increasing the particle density of the positive electrode material. To optimize the performance of manganese-titanium batteries, Toshiba uses an electrolyte with a high flash point and a separator with excellent heat resistance.
5 British resistance
Inexis firmly takes the lithium manganate route, and its lithium battery technology level is in the leading ranks among all Japanese companies. At present, the product data of the power lithium battery supplied by Intex is good, but it still needs to be tested by mass production.
6GS Yuasa
GS Yuasa is actively advancing in both the lithium manganate and lithium iron phosphate routes. The important products of lithium manganate are EH6 and LEV50, and the important products of lithium iron phosphate are LEV25 and LIM40.
7 Sony
While developing lithium iron phosphate batteries, Sony is also actively developing lithium cobalt oxide + tin-based alloy materials for power lithium batteries. Sony's approach is to "coat the surface of the lithium cobalt oxide material with a thickness of 0.1~1pm". The positive electrode material is made of a mixture of tantalum cobalt oxide and ternary materials, and a ceramic diaphragm is used to improve safety.
