Seven Generational Ruminations

Valence brings safe lithium phosphate power to both small and large-format applications. Our lithium phosphate technology is breaking away from earlier lithium cobalt solutions to safely power EV's, marine electronics, life saving devices and many other applications where long-life, safety, reliability and high performance are a necessity.

An extensive summary of lithium ion battery choices. The information was assembled by electric vehicle enthusiasts and is geared to the needs of using them on electric vehicles.

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They have designed a range of batteries compatible with existing 12 volt systems, but based on the LiFePO4 chemistry. This gives the expected weight advantages, the same battery capacity with less weight, and awesome power delivery capability because of the characteristics of the LiFePO4 chemistry. They market the battery for high performance sports cars, where perhaps weight of the starter battery makes a speed difference.

Battery Junction sells a range of rechargeable batteries, battery packs, chargers, and related equipment.

A seller of batteries and battery packs made using NiMH, Li-ION, Li-Poly, and Li-Fe-PO chemistries. They specialize in supplying the R/C hobbyists.

All-Battery sells a comprehensive range of batteries and battery packs using all chemistries, including lead-acid, NiMH, NiCD, Li-ION and Li-Fe-PO. They also sell a wide range of equipment, materials and accessories.

Batteryspace sells a comprehensive range of rechargeable batteries using lead-acid, NiMH, Li-ION and Li-Fe-PO chemistries. They also make battery packs and sell a variety of instruments, tools, materials and accessories.

A Department of Energy technical report on low-cost LiFePO4 batteries. The cycling performance of low-cost LiFePO4-based high-power lithium-ion cells was investigated and the components were analyzed after cycling to determine capacity fade mechanisms. Pouch type LiFePO4/natural graphite cells were assembled and evaluated by constant C/2 cycling, pulse-power and impedance measurements. From post-test electrochemical analysis after cycling, active materials, LiFePO4 and natural graphite, showed no degradation structurally or electrochemically. The main reasons for the capacity fade of cell were lithium inventory loss by side reaction and possible lithium deposition on the anode.

A high-tech battery manufacturer in China specializing in high volume production of Lithium battery chemistries. Their batteries are large scale and meant for vehicle use and other high power applications.

China based maker of lithium batteries in large sizes for large scale power systems. They are an authorized distributor of Thundersky batteries.