Supercapacitors, or Ultracapacitors as they are also known, are a novel energy storage technology that offers high power density, almost instant recharging and very long lifetimes. The global supercapacitor market is expected to reach an estimated USD 3,1 billion by 2026 and is forecast to grow at a CAGR of 15.5% from 2017 to 2027. The major drivers of growth for this market are increasing demand for hybrid electrical vehicles and portable electronics products and their superior properties, such as high energy density, long lifecycles, and power stabilization as compared conventional batteries.
- Virtually unlimited cycle life; can be cycled millions of time
- High specific power; low resistance enables high load currents
- Charges in seconds; no end-of-charge termination required
- Simple charging; draws only what it needs; not subject to overcharge
- Safe; forgiving if abused
- Excellent low-temperature charge and discharge performance
- Low specific energy; holds a fraction of a regular battery
- Linear discharge voltage prevents using the full energy spectrum
- High self-discharge; higher than most batteries
- Low cell voltage; requires series connections with voltage balancing
- High cost per watt
Competitors have found non scalable solutions due to economic and/or technological issues.
|Graphene||Industrial graphene lacks great energy performance in real conditions|
|Ultra high performance activated carbon||Not commercial material/too expensive|
|Carbon nanotubes||Not commercial CNT electrodes|
|Carbon aerogel||Not commercial|
Gnanomat technical approach: scalable, viable and safe-by-design graphene-based nanomaterials; showing outstanding improvement in capacitance, energy, power and cyclability.
Lithium-ion batteries (Li-B) are a family of rechargeable batteries with a high energy density, tiny memory effect and low self-discharge. Because of its lightness and high energy density, Lithium-Ion batteries are ideal for portable devices and they are also growing in popularity for military, battery electric vehicle and aerospace applications. The global lithium-ion market is expected to reach an estimated USD 56 billion by 2024 from USD 25 billion in 2015; growing at a CAGR of 10.6% from 2015 to 2024. Global demand for electric vehicles is anticipated to surge over the next few years. This will lead to reduced cost of transportation, development of autonomous driving and others.
- High specific energy and high load capabilities with Power Cells
- Long cycle and extend shelf-life; maintenance-free
- High capacity, low internal resistance, good coulombic efficiency
- Simple charge algorithm and reasonably short charge times
- Low self-discharge (less than half that of NiCd and NiMH)
- Requires protection circuit to prevent thermal runaway if stressed
- Degrades at high temperature and when stored at high voltage
- No rapid charge possible at freezing temperatures (<0°C, <32°F)
- Transportation regulations required when shipping in larger quantities
From the battery application perspective, the incentive for implementing a nanomaterial electrode as a Lithium-ion storage material would be to derive significant improvement in energy, power, cycle life or some combination of the same.
Gnanomat has shown remarkable advances in these matters that can be applied to improve Lithium-ion battery performance.