Source:JASE-W Japanese Smart Energy Products & Technologies

https://www.jase-w.eccj.or.jp/technologies/index.html

Keywords

Y2

deviceZ4

electricity

energy storage/traffic system

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electrical machinery
Toshiba Corporation

SCiBTM Long-Life Lithium Ion Rechargeable BatteryFeatures
SCiB™ uses lithium titanium oxide (LTO) in its anode to achieve excellent characteristics, including safety, longlife, low-temperature performance, rapid charging, high input/output power and large effective capacity.
SCiB™ has been widely used for vehicle, industrial and infrastructure applications, including automobiles,buses, railroad cars, elevators and large-scale power storage facilities linked to renewable energy.

Effects or Remarks

Six features

SCiB™ provides a long life of over 20,000*1 charge/discharge cycles, rapid charging, high Input/output power
performance and excellent low-temperature operation, all while maintaining a high level of safety.
Safety: Uses highly safe lithium titanium oxide (LTO)
Long life: Over 20,000 cycles*1

SafetyLow-temperature operation: Can be used at temperatures as
low as -30°C
Rapid charging: Rechargeable in 6 minutes*1
High input/output: Chargeable at large current and provides
large current output*1 Measured with a particular single cell under specific conditions*2 SOC: State of Charge

Low-temperature
operationLong life

Features realized by the useof lithium titanium oxide

Wide effective SOC range*2: Provides a large available capacity

Wide effective
SOC range

Highinput/output:
Rapid
charging

Characteristics

SCiB™ rechargeable cells can be categorized into two types: high power and high energy.
The high power cell is suitable for applications requiring the charging and discharging of large current in a shorttime such as regenerative braking in automotive applications.
The high energy cell is suitable for applications requiring large capacity such as electric vehicles and stationary
storage systems.

High power type
Power density [W]

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S6/7

High energy typeHigh power type

Energy density [Wh]The SCiBTM rechargeable battery does not explode or ignite easily even when short-circuited, and lithium metal
deposition is extremely unlikely to occur even under high input, low temperature, and long-term cycle use.

SmallInternal short- ➔ Obtained higher resistivity
due to phase transformation ofcircuit current the LTO surface where the shortLarge

circuit occurred

NoLithium metal ➔ Does not reach deposition
potential for lithium even at highdeposition input, low temperature, and longYes

cycle stages

At high input or low temperature

+
Li+

Li+

Separator

Li

Anode potential(V vs Li/Li+)

Carbon materials➔ thermally stable

Short
circuitElectrochemical potential of anode0.080.00

Carbon anode (-)

Li-metal deposition
potential

Lithium metal is deposited on the negative station by rapid charging or low temperature operation, and by long-term
cycle use. Short circuit occurs due to contact with positive electrodes from breaking through the separator.

At rapid charging or low-temperature charging+Separator
No lithium metal deposition

LTO anode (-)

Anode potential(V vs Li/Li+)

Anodematerial

Lithium Titanate Oxide(LTO, noncombustiblematerials)

Event between electrodes

Conventional
Lithium-ion battery
Conventional
Lithium-ion battery

Materials/technology

1.55

0.00

Safety margin
against Li-metaldeposition potential

Effects or Remarks
This enables efficient recovery/reuse of regenerative energy, allowing effective utilization of limited
energy.
With its improved cycle life, reduced maintenance frequency, reduced waste requiring disposal, andlower running costs, the SCiB™ rechargeable battery can help reduce environment impact. It was also
certified as Toshiba’s “Excellent ECP*3” (given to Toshiba products with excellent environmental
features).
*3 Environmental Conscious Products (environmentally harmonious product)

Installation in Practice or Schedule
Domestic

Installation at automobile manufacturers• Suzuki Motor Corporation "eNe-CHARGE (vehicle's regenerative braking system)"• Nissan Motor Co., Ltd. “DAYZ/ DAYZ Highway STAR” (2019*4)• Mitsubishi Motors Corporation “eK wagon” (2019*4)• Mazda Motor Corporation “MAZDA 3”’s mild hybrid system “M Hybrid” (2019*4)• Hino Motors, Ltd. “Hino Profia Hybrid” (2019*4)
Other installation record• Tohoku Electric Power Company “Verification Project for Storage Battery System to
Deal With Frequency Fluctuation at Nishi Sendai Substation”
40 MW output storage battery system (2013*4)
Storage battery system and micro EV battery (2014*4)• Tohoku Electric Power Comapny “Verification Project for Minami Soma Substation
Supply and Demand Balance Improvement Storage Battery System”
400 MW output storage battery system (2015*4)

Overseas• Indiana State, USA “Plug-in Ecosystem Verification Experiment Project”
Storage battery system (2013*4)• Madrid Province, Spain: Projects for “Development of Safe Low-Cost Large-Scale
Storage Battery System Technology” and “Development of Series Stabilization Low-Cost
High-Output Storage Battery System Technology”, Mobile storage battery system (2015*4)*4: Year of press releae

Contact:Toshiba Corporation
Battery Division
URL: https://www.global.toshiba/ww/products-solutions/battery/scib.html

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