The Challenge

While the cost of LIB has been significantly reduced and its performance improved since Sony commercialized it in 1991, the market is fast expanding towards new applications in electric mobility and energy storage. Several key characteristics of current LIB technology are limiting their utilization in these applications:

  • Slow Charging: The average charging time is around two hours for the LIB to be fully charged.
  • Limited Lifetime: LIB usually last about 500 -1000 recharges cycles due to solid electrolyte interphase growth. That is equivalent to only two to three years of typical usage .
  • Safety and Transportation Restrictions: Thermal runaway can occur when LIB cell accidently crushed or punctured. Such conditions can cause fire and leads to unsafe environment.

The main challenge the industry is looking at is to be able to improve this key characteristics by a simple and cost-effective solution,  while granting a rapid integration of the newly developed technology into current production processes.

The Solution

UltraCharge replaces graphite used for the anode (negative pole) with Ultracharge’s nanotube gel material made from titanium dioxide. Titanium dioxide , an abundant, cheap and safe material commonly used as a food additive and in sunscreen lotions to absorb harmful ultraviolet rays.

Naturally found in a spherical shape, UltraCharge has patented a unique but simple method to turn titanium dioxide particles into tiny nanotubes a thousand times thinner than the diameter of a human hair.

3 NTU Technical Disclosures: US Provisional Patent Application No. 61/878,456., US Provisional Patent Application No. 61/951,194., PCT Application No. PCT/SG2014/000435.

The advantages of UltraCharge battery technology are significant and provide a game-changer solution to the entire battery industry and is incorporating a number of economical as well as ecological aspects which are sure to be the future of renewable energy sources.  UltraCharge batteries’ benefits range from rapid charging to long lifetime, enhanced safety, simplicity  and cost efficiency.

Titanate nanotubes vs. other anode materials 

Graphite Silicon LTO Titanate Nanotubes
Capacity (mAh/g) < 350 400 – 2,500 ~170 300 – 1,000
Typical Charge Time (hours) > 2 2 – 3 0.02 0.02
Cycle life < 1,000 700 – 1,000 7,500 > 10,000
Safety Low N.A. Medium High
Cost Low Low Medium Low
Technology Complexity Market Standard High Low Low