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Positioning of Power Storage Devices

The following figure shows the positioning of various Power Storage Devices based on the two indices of "power density" and "energy density."

ADVANTAGE

Advantages of Power Storage Devices

TAIYO YUDEN's Power Storage Devices possess power density, safety, and durability features that secondary batteries lack. The various advantages of "Electric Double-Layer Capacitors" and "Lithium Ion Capacitors" are introduced below.
Broad operating temperature range
  • High temperature lifetime
  • Low temperature operation
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Superior charging and discharging characteristics
  • Maintenance-free
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No rupturing or combustion due to an internal short
  • High level of safety
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CASE STUDY

Here are various cases where the advantages and features of TAIYO YUDEN's "Power Storage Devices" can be utilized as well as actual case studies.
Backup

Capacitors immediately supply power when the power is shut off from the main power source.

  • Low resistance
  • Long lifetime
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Peak assist

Capacitors supply power when the power exceeds the capacity of the main power source.

  • Low resistance
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Battery replacement

Repeated charging and discharging enables the storage of even unstable power.

  • Long lifetime
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TECHNICAL INFORMATION

The following explains the characteristics of the Power Storage Devices while comparing them to other devices.
TAIYO YUDEN
Electric Double-Layer
Capacitors
EDLC
Storage method
EDLC
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TAIYO YUDEN
Lithium Ion Capacitors
LITHOSION™
Storage method
LITHOSION™
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Lithium Ion Batteries
LIB
Storage method
LIB
Internal resistance Excellent
Low
Good
Medium
Average
High
Voltage Temperature range 2.7 to 0V
-40 to 70℃
2.3 to 0V
-40 to 85℃
3.5 to 2.5V
-30 to 85℃
3.8 to 2.2V
-30 to 70℃
to 4.3V
-20 to 60℃
Voltage / Volume Average
1
Good
2 to 3
Excellent
100
Charging/discharging cycles Excellent
100K+ Cycles
Good
10K+ Cycles
Average
500–1K Cycles
Self‐discharge Average Excellent Excellent
Safety Excellent Excellent Average
Necessity of voltage monitoring None Required Required

PRODUCT INFORMATION

Cylindrical Electric Double-Layer Capacitors

Cylindrical Electric Double-Layer Capacitors
EDLC
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Electric Double Layer Capacitors
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Voltage operating temperature range

2.7 to 0V -40 to 70℃
2.3 to 0V -40 to 85℃

Electrostatic capacitance

2.4F to 20F

Cylindrical Lithium Ion Capacitors

Cylindrical Lithium Ion Capacitors
LITHOSION™
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LITHOSION™
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Voltage operating temperature range

3.8 to 2.2V -30 to 70℃
3.5 to 2.5V -30 to 85℃

Electrostatic capacitance

20F to 270F

MOVIE

An easy to understand explanation of TAIYO YUDEN's "Power Storage Devices."

(139sec.)
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