Lithium ion batteries are known to be a bit hazardous, however lithium polymer batteries seem to be a safer option. Lithium polymer batteries can be formed to fit different shapes, do not require rigid metal casings, don't use flammable solvent liquids and are, therefore, less likely to fail dangerously. They also seem to provide a greater number of charging cycles.
Large size lithium polymers are available to the electric scooter and bike market now. They are often the battery of choice in solar racers.
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Lithium ion batteries are known to be a bit hazardous, however lithium polymer batteries seem to be a safer option. Lithium polymer batteries can be formed to fit different shapes, do not require rigid metal casings, don't use flammable solvent liquids and are, therefore, less likely to fail dangerously. They also seem to provide a greater number of charging cycles. Large size lithium polymers are available to the electric scooter and bike market now. They are often the battery of choice in solar racers.