Toshiba Launches 20Ah-HP SCiBTM Lithium-ion Rechargeable
Battery Cell that Delivers Both High Energy and High Power
Wide application includes vehicles, industrial equipment and
energy storage systems.
TOKYO, January 12, 2022 — Toshiba Corporation (TOKYO:
6502), a company dedicated to advancing carbon neutrality through
its technologies, products and services, today expanded its SCiBTM
product offering with the launch of an innovative 20Ah-HP
lithium-ion rechargeable battery cell that delivers high energy and
high power at the same time.
The market wants batteries that deliver both high-energy and
high-power characteristics, but until now this has required a
trade-off for lithium-ion rechargeable batteries. In an EV, for
example, a high-energy battery allows the vehicle to drive further
on a single charge—but it lowers power input and output and extends
charge times. Toshiba drew on its know how in current high-energy
and high-power products to develop a new cell that successfully
combines the advantages of both.
The cell is ideal for heavy-load applications where high power input
and output are essential, and for situations where battery cells
must suppress heat and operate continuously, such as rapid charging
of commercial vehicles, regenerative power systems for rolling
stock, and industrial equipment. The cell is the same size as
Toshiba’s current 20Ah product, allowing current customers to easily
upgrade to the improved input and output power with the same module
pack. The cell is now available to order worldwide.
1. Excellent heat suppression
Compared to Toshiba’s current 20Ah cell, the new 20Ah-HP cell delivers 1.7x higher input and 1.6x higher output, realized by an approximately 40% reduction of resistance in the cell. This improvement efficiently suppresses heat generation when a large current is applied, allowing design of a simpler cooling system. For example, depending on the customer's system, water cooling can be simplified to forced air cooling, and forced air cooling simplified to natural cooling. The lowered resistance also reduces over voltage, allowing the cell to function in a wider range of state-of-charge (SOC).
2. Long life
The new 20Ah-HP cell achieves a longer life than the current 20Ah cell by suppressing heat during continuous charging and discharging, due to its lower internal resistance. Under the test conditions shown in figure 1, the cell maintained almost 100% capacity after 8,000 charge/discharge cycles, while the capacity of the current 20Ah cell decreased by approximately10%.
Figure 1: Comparison of capacity falloff of 20Ah and 20Ah-HP products. (Toshiba testing)
The new 20Ah-HP cell delivers improved input and output power but maintains the same size as the current 20Ah cell, allowing current customers to easily upgrade to the improved performance with the same module pack.
Toshiba expects to see the new cell deployed in automobiles, industrial equipment, and storage battery systems. Some examples include drive power supply and emergency power supply for railways, regenerative power supply for harbor cranes, electric ferries, hybrid buses, trucks, hybrid electric vehicles (HEVs) and plug-in HEVs (PHEVs), alternatives to lead-acid batteries and storage battery systems.
||1900W*（SOC 50%, 10sec, 25℃）
（SOC 50%, 10sec, 25℃）
|Energy density (volume)
|Energy density (mass)
||W116 × D22 × H106 mm
* Calculated value with internal resistance
About Toshiba Corporation
Toshiba leads a global group of companies that combines knowledge and capabilities from over 140 years of experience in a wide range of businesses—from energy and social infrastructure to electronic devices—with world-class capabilities in information processing, digital and AI technologies. These distinctive strengths support Toshiba’s continued evolution toward becoming an Infrastructure Services Company that promotes data utilization and digitization, and one of the world’s leading cyber-physical-systems technology companies. Guided by the Basic Commitment of the Toshiba Group, “Committed to People, Committed to the Future,” Toshiba contributes to society’s positive development with services and solutions that lead to a better world. The Group and its 120,000 employees worldwide secured annual sales surpassing 3.1 trillion yen (US$27.5 billion) in fiscal year 2020. Find out more about Toshiba at www.global.toshiba/ww/outline/corporate.html
For more information about product visit https://www.webcom.toshiba.co.jp/scib/en/contact.php?cate=all