SPEL is the developer and manufacturer of EDLC, lithium-ion capacitors and hybrid Supercapacitors. Lithium Ion Capacitor and it's hybrid version represent
Generation
Next series of high performance electrochemical capacitor (Supercapacitors) that contain the high energy density of lithium-ion batteries and the high power density
of capacitors. These novel energy storage devices are capable of rapid charge-discharge rates and extended cycle life for various energy storage and pulsed power supply
applications in electronics.
Introducing a
Patented (US 11302487 B2) Product Lithium Ion Capacitor (LIC) that features the highest energy density when compared to any Supercapacitor available in the market. It has an operating voltage of
3.8 to 2.2V and can provide
over 3X more energy density than a conventional Supercapacitor, commonly known as an electric double-layer capacitor, or EDLC.
The SPEL G-Series LIC 3000F pouch cell features
18 Watthours per kilogram of specific energy density, compared to only 6-7 Wh/kg from the top-performing 3000F capacitance EDLC.
Lithium-ion capacitor is a hybrid energy storage device, classified as an electrochemical capacitor, that combines the high energy density and low self-discharge of a
battery with the rapid charging/discharging capabilities and long cycle life of a supercapacitor. Li-ion capacitors offer a favorable combination of high energy density and
high power density, and can effectively bridge the gap between batteries and capacitors to improve the efficiency of electrical systems.
SPEL G-Series 3000F LiC contains
18 Watthours per kilogram of specific energy density and 30 Wh/L of volumetric energy density. SPEL G-Series is designed to deliver high power-
it's capable of 7.5 Kilowatts per kilogram of power density, a maximum charging current of 150 A, and a lifetime of over 100,000 cycles.
SPEL G-Series LiC 200F has demonstrated cycle life of over
350,000 cycles while retaining over 80% of initial capacitance. In comparison, most rechargeable batteries are only
capable of around 1000 charge cycles within that margin. SPEL LIC's superior charging-efficiency and cycling performance is well-suited for hybrid energy storage systems. These
hybrid systems may combine batteries with Supercapacitors, which enhance power and protect batteries from transient loads. This improves performance, efficiency, and lifetime for the
entire system.
Also, introducing the World’s thinnest
Patented (US 11521804) Novel Ultra-Thin Lithium Ion Capacitor with Ultra High Power Performance , the SPEL G-Series 5.0 Farad/3.8 VDC. It is a Low-profile power source that can be used alone or in tandem with batteries in Hybrid Energy Storage Systems (HESS) to increase power handling and prolong lifetime. It measures 0.37mm in total thickness. This 5F is extremely thin and lightweight and can be
attached to a battery to enhance pulse power functionalities and significantly extend battery's operating life.
SPEL's LIC is available in a thin form factor in a Pouch construction, Module ready design having single cell capacity ranging up to 4500 Farads 3.8V max and a higher voltage
module upto 1500 VDC.
SPEL Lithium-Ion Capacitor Unique features
Higher Voltage and Energy Density than EDLCs
SPEL LIC is comprised of activated carbon cathodes and graphitic anodes that are pre-lithiated. SPEL LIC Pre-Lithiated anode features
Patented (US 10755867) Method of Negative Electrode
Pre-Lithiation that increases capacitance and lowers internal resistance. SPEL's proprietary process of pre-doped anodes with lithium, lowers anode charge potential translating into in a higher overall cell voltage.
of 3.8 Volts. This enables SPEL G-Series LICs to have energy density levels 3 to 4 times higher than conventional 2.7/3.0 VDC electric double-layer Supercapacitors.
Rapid Charging and High Power Capability
SPEL LICs can be fully discharged in seconds/subseconds to quickly deliver high current pulsed power loads. The SPEL G-Series 3000F LIC can supply 1900 Watts, or 500 Amps equivalent,
of electrical current in 3 seconds. The recommended maximum charging current of the 3000F is 150 A, which can fully fast-charge the cell in under 30 seconds.
As seen in the Ragone plot, LICs have similar energy density as batteries but rival the power density of conventional and electric double-layer capacitors (ultracapacitors/Supercapacitor).
LICs and related hybrid electrochemical capacitors are designed to push the limits of the frontier where energy and power converge.
Excellent Cycle Life
SPEL LIC cells are thoroughly tested for capacitance, internal resistance, cycle life, and temperature range performance. A critical performance test includes the high temperature
and high voltage DC-life test: The LIC cell is held at 3.8 V for 2000 continuous hours in 65° C heat. Results indicate that SPEL LIC cells have consistently exceeded this benchmark by retaining 90% of
initial capacitance after 2000 hours.
SPEL G Series LICs can perform well over 100,000 charge-discharge cycles. Comparable rechargeable batteries, such as lithium-ion and lead-acid batteries, are only capable of 300 to 2000 charge discharge cycles.
Lower Self-Discharge than EDLCs
SPEL G Series LIC averages less than 5% voltage loss from maximum charge over a three months period, while electric double-layer capacitors typically suffer from a 30-50% voltage loss after only a single month.
Wide Temperature Range
SPEL LICs are reliable in a wide temperature range
Patented (US 10121605 B2) of
-60°C to 75°C
SPEL G Series LICs are tested under extreme temperatures to simulate all possible operating conditions. Such testing includes temperatures of up to 75° C to simulate the heat of deserts
and electric vehicle engines and freezing temperatures down to -60° C to simulate arctic, aerospace environments, and like those experienced by satellites in low Earth orbit.
Safe and Environmentally Friendly
SPEL LIC technology is inherently safer to use than lithium-ion batteries because LICs do not contain volatile lithium metal oxide electrodes that can trigger
hazardous
Thermal Runaway reactions. Thus, LICs aren't strictly regulated like lithium-ion batteries regarding shipping and transportation.
SPEL is a clean technology company and all products are manufactured using only environmentally friendly methods and materials.
