Toshiba has developed next-generation lithium ion batteries (next-generation SCiB ™ ). Which uses titanium niobium oxide with double capacity as a negative electrode material. Also, compared with graphite that generally used as the negative electrode material of lithium-ion batteries. And Toshiba successfully made this trial.
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This next-generation SCiB ™ is capable of ultra fast charging with high energy density. And it is suitable for electric vehicle (EV) applications. When mounted on the EV. It enables us to have ultra-rapid charging of 6 minutes. That is the distance traveled by comparing triple 320km compact EV equipped with the conventional lithium-ion battery. In the future, they aim to commercialize in 2019 by further expanding the mileage by further improving the energy density of the battery.
SCiB Titanium niobium oxide
It is a battery for EV of a capacity of 50 Ah. Titanium niobium oxide adopted as a negative electrode material is excellent in durability and safety without precipitation of metallic lithium. Which causes battery deterioration and short circuit even in ultra fast charging and low-temperature charging. It features like less disturbance of crystal arrangement. It is possible to efficiently supply lithium ions in the crystal structure and double the capacity of the negative electrode (capacity per unit volume) compared to graphite while maintaining high safety and rapid charging characteristics.
SCiB Low-temperature operation
In addition, the next-generation SCiB TM achieves the long life and low-temperature resistance characteristics of the current SCiB ™. In a demonstration using the prototype battery. Toshiba gets success with the battery capacity of 90% or more. Even if charging/discharging is repeated 5000 times and ultra-fast charging for 10 minutes in a low-temperature environment of minus 10 ° C.
The current SCiB ™ adopts lithium titanate which is excellent in rapid charging performance. That is a long life and safety for the negative electrode material. And it is used for infrastructure such as vehicles such as automobiles, buses. And railroads, industrial equipment such as elevators, power plants.
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In addition, this result is partly utilizing the results of the grant project of the National Energy and Industrial Technology Development Organization (NEDO), a national research and development corporation. Also, we will continue research and development on the fast charge, long life, and high energy density of batteries.
- Mileage equivalent in JC 08 mode assuming compact EV with 32 kWh battery capacity
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| Prototype battery with capacity 50 Ah 111 mm x 194 mm x 14.5 mm |
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