Challenges facing the current generation lithium ion rechargeable batteries include limitations and deficiencies in power density, useful energy window, cycle life, cost, safety and toxicity. Worse, each lithium ion battery is optimized for energy (~180Wh/Kg) or power (50 - 110Wh/Kg) but not both.
Cost, safety and toxicity issues are principally related to the use of cobalt oxide cathode material. More recently, alternate cathode materials such as manganese oxide and iron phosphate have been formulated to improve safety and cost, but once again at the expense of energy density. The useful energy window, even of power-optimized lithium ion batteries is limited to 30-50% of the stored energy in order to extend cycle life.
Ionova Technologies' 3-D Nanofilm™ lithium ion materials enable the next generation of lithium ion batteries.
Cost, safety and toxicity issues are principally related to the use of cobalt oxide cathode material. More recently, alternate cathode materials such as manganese oxide and iron phosphate have been formulated to improve safety and cost, but once again at the expense of energy density. The useful energy window, even of power-optimized lithium ion batteries is limited to 30-50% of the stored energy in order to extend cycle life.
Ionova Technologies' 3-D Nanofilm™ lithium ion materials enable the next generation of lithium ion batteries.
- Energy densities comparable to today's energy-optimized batteries due to improved materials utilization, while supplying power densities exceeding today's power-optimized batteries due to improved ion transport, access, solid-state diffusion and improved electron transport.
- Cycle life 10 fold greater vs. today's technology due to reduced diffusion depth, expansion stress mitigation and use of low-expansion coefficient materials.
- The useful energy window expanded permitting deeper cycling due to reduced diffusion depth, expansion stress mitigation and use of low-expansion coefficient materials.
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Cell-generated heat significantly reduced vs. today's batteries due to reduction in ion transport and insertion resistance, electronic resistance and use of low exothermic heat generating materials.
- Safety and toxicity improved as use of cobalt oxide is avoided.
- Systems costs and complexity reduced for multi-cell modules as active cell-balancing electronics are reduced if not avoided altogether.