Energy Storage Solutions
PPM Power supplies Lithium-ion capacitors as energy storage solutions which have a hybrid structure that uses the same activated carbon as electric double layer capacitors for the positive electrode and the same carbon as Lithium-ion batteries for the negative electrode.
Due to the structure and advanced pre-doping technology, it has resulted in performance that combines the advantages of both at a high energy density, high output density and rapid charging and discharging and a variety of application uses whilst ensuring high safety.
Our Lithium-ion Prismatic products offer an opportunity to drive down costs by diminishing the number of manufacturing steps, reduce weight and costs whilst optimising packaging efficiency and applications.
Configuration and characteristics of various electric storage devices
Comparison of characteristics of various electric storage devices
Lithium-ion Capacitor | Electrical Double Layer Capacitor | Lithium-ion Battery | Lead Acid Battery | |
---|---|---|---|---|
Energy density | Medium (Higher at higher current) | Low | Very high | High |
Power density | High | High | Low (No good for rapid charge) | Very low |
Rapid charge / discharge | In seconds | In seconds | In hours (Needs a charge control) | In hours (Needs a refreshing charge) |
Internal resistance | Low | Low | High | Very high |
Low temperature performance | Good | Good | Very bad | Bad |
High temperature performance | Very good (Up to 70℃) | Good (Up to 60℃) | Very bad (Up to 40℃) | Very bad |
Self-discharge | Small | Big | Small | Big |
Maintenance | Maintenance free | Maintenance free | Frequent replacement required | Frequent replacement required |
Lifetime (float / cycling) | Long | Long | Relatively short | Short (Sudden death occurs) |
Safety & flammability | High, flammable | High, flammable | Low, flammable (Self-heat up / igniting) | High, not flammable |
Application | Very high power (Medium energy) | Very high power (Low energy) | Medium power (High energy) | Low power (High energy) |
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