Chemistry

Superior Lithium Ion Phosphate Chemistry including NanoPhopsphate® for power & LiFeMgPO4 for energy

 

Lithium Werks Power Cells

Lithium Werks power cells are based on technology originally developed at M.I.T. for superior power performance called NanoPhosphate®. The NanoPhosphate technology is structurally different than other iron phosphates, allowing much higher rate capability and resulting in higher power, increased safety, and better life.

Image: Valence 26650 Lithium Iron Magnesium Phosphate power cells
26650 Lithium Iron Magnesium Phosphate power cells

Valence’s Battery Module Chemistry

Valence’s Lithium Iron Magnesium Phosphate (LiFeMgPO4) modules have considerably greater energy density making them particularly suitable for numerous applications. LiFeMgPO4 is considered safer, less toxic, and more energy efficient with significantly longer cycle life than mixed oxide chemistries. Other benefits include internal cell balancing, less maintenance, low weight, and high energy density.

See how our chemistry compares to other technologies:

Commonly used in starter batteries for internal combustion engine (ICE) vehicles Lead Acid is normally a low-cost secondary battery, composed of a Lead-dioxide cathode, a sponge metallic Lead anode and a sulphuric acid solution electrolyte. The heavy metal element makes Lead Acid batteries toxic and improper disposal can be hazardous to the environment.

Disadvantages of Lead Acid batteries include

  • Failure between several hundred and 2,000 cycles
  • Comparatively low energy density
  • Long charge time
  • Careful maintenance requirements
  • Sudden failure

Disadvantages include:

  • High rate of self-discharge at high temperature.
  • Cadmium is highly toxic
  • Use in batteries is controlled
  • Environmental recycling issues
  • Memory effect is one of the biggest disadvantages to using NiCd

Disadvantages include:

  • Higher cost
  • Relatively low specific energy compared with newer systems
  • Memory effect / requires periodic full discharges
  • Environmentally unfriendly; cadmium is a toxic metal and cannot be disposed of in landfills
  • Poor charge retention / needs recharging after storage

Disadvantages include:

  • When not in use Sodium (Na-NiCl2) batteries typically require to be left on charge, in order to be available for use when needed.
  • If shut down,the reheating process lasts 24 hours, and then a normal charge process of 6-8 hours is required for a full charge.
  • Inefficiency due to energy consumption when not in use.
  • Lithium Iron Magnesium Phosphate (LiFeMgPO4) offers considerably greater energy density when compared to Lead Acid and Nickel Cadmium.

  • LiFeMgPO4 is considered safer when compared to lithium oxide or mixed oxide battery products. Punctured or short circuited lithium metal oxide cells will cause heating, oxygen release and the potential for thermal runaway.

  • Lithium Iron Magnesium Phosphate (LiFeMgPO4) also offers longer cycle life to 2800 cycles at 80% depth of discharge.

  • Valence Cathode Materials are prepared using a unique and versatile preparative method called Carbothermal Reduction (CTR), a process to develop lithium iron magnesium phosphate cathode powder in a very efficient, cost effective, stable and scalable way.

  • CTR makes Valence lithium iron magnesium phosphate powder high quality, longer-lasting, with more sustained conductivity, enhanced performance and ultimately a better cathode material that is more easily manufactured into cells.

  • Valence holds an ISO 9000 certification, which is only given to companies with the highest quality management practices. We have a long successful history making Li-Ion batteries which includes 300+ patents relating to our technology.

  • ISO 9001 Certified manufacturing facilities ensure optimum quality in materials and products. Valence Energy Tech (VET) deploys SPC methods of manufacturing and is currently working towards TS16949 accreditation.