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Advantages of Power Storage Devices

Can be used across a broad temperature range

"Electric Double-Layer Capacitors" and "Lithium Ion Capacitors" have a broad operating temperature range to achieve a long lifetime at high and low temperature operation.
Changes in electrostatic capacitance

High temperature load characteristics of Electric Double-Layer Capacitors (EDLC)

TAIYO YUDEN’s EDLCs exhibit a small rate of change in their electrostatic capacitance and internal resistance. Additionally, the aging variation of the discharge time is small.
Changes when a rated voltage is continuously applied in a 70°C environment
good
Small rate of change in electrostatic capacitance
"TAIYO YUDEN" < "Company A" < "Company B"
Rate of change [%] in electrostatic capacitance
Time [h]
TAIYO YUDEN LP-series 2.7V
Company A electric double-layer capacitor 2.7V
Company B electric double-layer capacitor 2.7V
good
Small rate of change [%] in internal resistance
"TAIYO YUDEN" < "Company B" < "Company A"
Rate of change [%] in internal resistance
Time [h]
TAIYO YUDEN LP-series 2.7V
Company A electric double-layer capacitor 2.7V
Company B electric double-layer capacitor 2.7V

High temperature load characteristics of Lithium Ion Capacitors (LITHOSION™)

TAIYO YUDEN's Lithosion Capacitors are power storage elements that can be used at a higher voltage than electric double-layer capacitors. The product has a small rate of change in their electrostatic capacitance and internal resistance.
Changes when a rated voltage is continuously applied in a 70°C environment
good
Smaller rate of change in electrostatic capacitance than EDLCs
"TAIYO YUDEN LITHOSION™" < Company A EDLC < Company B EDLC
Rate of change [%] in electrostatic capacitance
Time [h]
TAIYO YUDEN Lithium Ion Capacitor RS-series 3.8V
Company A electric double-layer capacitor 2.7V
Company B electric double-layer capacitor 2.7V
good
Smaller rate of change in internal resistance than EDLCs
"TAIYO YUDEN LITHOSION™" < Company A EDLC < Company B EDLC
Rate of change [%] in internal resistance
Time [h]
TAIYO YUDEN Lithium Ion Capacitor RS-series 3.8V
Company A electric double-layer capacitor 2.7V
Company B electric double-layer capacitor 2.7V
Low temperature operation

High temperature load characteristics of Electric Double-Layer Capacitors (EDLC)

TAIYO YUDEN's EDLC's support usage at temperatures from -40 to 85°C.
Changes in LP series temperature characteristics
Electrostatic capacitance [F]
Temperature [°C]
ESR@1kHz [mΩ] DCR [mΩ]
Electrostatic capacitance [F]
ESR@1kHz [mΩ]
DCR [mΩ]
Rate of change [%] in electrostatic capacitance
Temperature [°C]
ESR@1kHz [mΩ] DCR [mΩ]
Rate of change [%] in electrostatic capacitance
ESR@1kHz [%]
DCR [%]
Rate of change [%] in electrostatic capacitance
Temperature [°C]
DCR [mΩ]
Rate of change [%] in electrostatic capacitance
DCR [%]

Changes in characteristics of Lithium Ion Capacitors (LITHOSION™) under the rated temperature range

TAIYO YUDEN's Lithosion Capacitors support usage at temperatures from -30 to 85°C.
Changes in RS series temperature characteristics
Electrostatic capacitance [F]
Temperature [°C]
DCR [mΩ]
Electrostatic capacitance [F]
DCR [mΩ]
Rate of change [%] in electrostatic capacitance
Temperature [°C]
DCR [%]
Rate of change [%] in electrostatic capacitance
DCR [%]

Superior charging and discharging characteristics

TAIYO YUDEN's capacitors exhibit a small rate of change in electrostatic capacitance and electrical resistance even after repeated cycles of charging and discharging. These capacitors possess a superior cycle lifetime.

Changes in characteristics due to Electric Double-Layer Capacitor (EDLC) cyclical charging and discharging

Changes in LP series charging and discharging characteristics
good
Provides a charging and discharging lifetime of over 100,000 cycles.
Electrostatic capacitance [F]
Number of cycles
ESR@1kHz [mΩ] DCR [mΩ]
Electrostatic capacitance [F]
ESR@1kHz [mΩ]
DCR [mΩ]
Rate of change [%] in electrostatic capacitance
Number of cycles
ESR@1kHz [%] DCR [%]
Rate of change [%] in electrostatic capacitance
ESR@1kHz [%]
DCR [%]
Rate of change [%] in electrostatic capacitance
Number of cycles
DCR [%]
Rate of change [%] in electrostatic capacitance
DCR [%]

Changes in characteristics due to Lithium Ion Capacitors (LITHOSION™) cyclical charging and discharging

Changes in RS series charging and discharging characteristics
good
Provides a charging and discharging lifetime of over 100,000 cycles.
Electrostatic capacitance [F]
Number of cycles
DCR [mΩ]
Electrostatic capacitance [F]
DCR [mΩ]
Rate of change [%] in electrostatic capacitance
Number of cycles
DCR [%]
Rate of change [%] in electrostatic capacitance
DCR [%]

High level of safety with no rupturing or combustion due to internal shorts

TAIYO YUDEN's capacitors do not contain oxygen (oxides) as a component element, so heat is only produced through Joule heating due to the stored electrical charge. Thermal runaway caused by a chemical reaction does not occur. Therefore, there is no risk of energy loss or combustion in conjunction with the discharge of electrical charge.
EDLC nail penetration test
Test method: charge at 2.7V and vertically pierce the center of the cell with a φ3 mm nail
Standard: no rupturing or combustion
Test result: safety valve opening, no bulging
Lithium Ion Capacitor nail penetration test
Test method: charge at 3.8V and vertically pierce the center of the cell with a φ3 mm nail
Standard: no rupturing or combustion
Test result: safety valve opening, no bulging