Toshiba Develops Next-Generation Lithium-ion Battery with New Anode Material
2017年10月3日 - 11:30AM
ビジネスワイヤ(英語)
- New battery realizes driving range of
electric vehicles boosted to 320km on 6-minute, ultra-rapid
recharge, triple that possible with current lithium-ion
battery.
- New anode material, titanium niobium
oxide achieves double the capacity of the anode of current
lithium-ion batteries.
Toshiba Corporation (TOKYO:6502), an industry leader in
lithium-ion battery technology, today announced the development of
its next-generation SCiB™, which uses a new material to double the
capacity of the battery anode. The new battery offers high- energy
density and the ultra-rapid recharging required for automotive
applications, and will give a compact electric vehicle (EV) with a
drive range of 320km*1 after only six minutes of ultra-rapid
recharging—three times the distance possible with current
lithium-ion batteries.
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Toshiba launched the SCiB™ as a safe, long-life, fast charging
lithium-ion battery in 2008. Since then, the company has constantly
refined the technology and improved real-world performance. For its
next-generation SCiB™, Toshiba has developed a titanium niobium
oxide anode material that has double the lithium storage capacity
by volume of the graphite-based anodes generally used in
lithium-ion batteries.
The new battery also offers high energy density and ultra-rapid
recharging characteristics, and its titanium niobium oxide anode is
much less likely to experience lithium metal deposition during
ultra-rapid recharging or recharging in cold conditions—a cause of
battery degradation and internal short circuiting.
Toshiba’s current SCiB™ employs a lithium titanium oxide anode,
and is known for excellent operating characteristics in respect of
safety, long life and rapid charging. It has found wide use in
vehicles and industrial and infrastructure applications, including
automobiles, buses, railroad cars, elevators and power plants. The
high energy density of the battery, and its rapid recharging, have
made important contributions to enhancing the convenience and
promoting the spread of EV.
Building on this heritage, Toshiba has developed a proprietary
method for synthesizing and disarranging crystals of titanium
niobium oxide and storing lithium ions more efficiently in the
crystal structure. The anode of the next-generation SCiB™ realized
through this approach has double times the capacity of the anode of
current lithium-ion batteries.
“We are very excited by the potential of the new titanium
niobium oxide anode and the next-generation SCiB™,” said Dr. Osamu
Hori, Director of Corporate Research & Development Center at
Toshiba Corporation. “Rather than an incremental improvement, this
is a game changing advance that will make a significant difference
to the range and performance of EV. We will continue to improve the
battery’s performance and aim to put the next-generation SCiB™ into
practical application in fiscal year 2019.”
Rigorous testing of a 50Ah prototype of the new battery has
confirmed that it retains the long life cycle, low-temperature
operation, excellent safety and rapid recharging characteristics of
the current SCiB™. The energy density by volume of battery is twice
that of the current SCiB™. The next-generation SCiB™ maintains over
90% of its initial capacity after being put through 5,000
charge/discharge cycles, and ultra-rapid recharging can be done in
cold conditions, with temperatures as low as minus 10oC, in only
ten minutes.
Toshiba will continue to develop higher energy density batteries
that extend the range of EVs and support ultra-rapid recharging,
and aims to commercialize the next-generation SCiB™ in fiscal year
2019.
Part of the research work on the next-generation SCiBTM was
subsidized by Japan’s New Energy and Industrial Technology
Development Organization (NEDO).
*1 A compact EV with a 32kWh next generation SCiB™ in JC08 test
cycle
About Toshiba
For over 140 years, Toshiba Corporation has contributed to a
sustainable future by applying innovative technologies to value
creation. Today, our business domains are centered on the essential
infrastructure that supports modern life and society. Guided by the
principles of The Basic Commitment of the Toshiba Group, “Committed
to People, Committed to the Future”, Toshiba promotes global
operations that contribute to realization of a world where
generations to come can live better lives.To find out more about
Toshiba, visit www.toshiba.co.jp/worldwide/about/index.html
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Toshiba CorporationSeiji Ishibashi, +81-3-3457-2100PR & IR
Divisionmedia.relations@toshiba.co.jp