Litiumjonbatteri Energilagring

Lithium ion battery energy storage is a low-maintenance battery, an advantage that most other chemistries cannot claim. There is no memory and no scheduled cycling is required to prolong the battery's life. In addition, the self-discharge is less than half compared to nickel-cadmium, making lithium-ion well suited for modern fuel gauge applications. lithium-ion cells cause little harm when disposed of.

Why Choose Lithium-ion?

The high energy density and large number of discharge cycles provided by lithium-ion cells are the most important factors, that make them indispensable in mobile phones and electric vehicles alike. However, there are many other ways in which they are superior to traditional battery chemistries. As well as the high-energy density of the cells, they are able to discharge at a higher power and can then be recharged much more quickly. In applications where charging power or time may be limited, such as solar PV systems or stop-start cars, it is not harmful to operate lithium-ion cells continuously at a partial state of charge. This gives them greater operating flexibility than lead acid cells.

The interaction between lithium-ion cells and the environment is very mild. There are no gas emissions from charging cells and heat loss, due to charging inefficiency, is very low. This means that it is possible to use lithium-ion cells in closed cabinets, completely isolated from their surroundings. At the end of life, the cells should be recycled but they contain no controlled toxic materials such as cadmium, mercury, and lead. Lithium-ion operation employs the same principles as any other rechargeable battery. During discharge, electrical charge moves through an external wire circuit between the electrodes of the lithium ion battery energy storage. To balance the charge transfer within the cell, positively charged lithium ions move through an internal electrolyte circuit between the positive and negative electrodes. During recharge, the process goes into reverse and lithium-ions move back through the electrolyte.

Lithium-ion Battery Main Features

• High Energy Density: Lithium-ion batteries offer greater energy density versus other types of rechargeable batteries (Nickel Metal Hydride battery, Nickel-Cadmium battery, Lead Acid battery) which enables batteries to become smaller and lighter.
• Great Power: As the operating voltage of a Lithium-ion battery is higher versus other types of rechargeable batteries, it has the ability to support greater output.

• High energy density - potential for yet higher capacities.
• Relatively low self-discharge - self-discharge is less than half that of nickel-based batteries.
• Low Maintenance - no periodic discharge is needed; there is no memory.

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