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Facts About Lithium ion Battery

Lithium ion Battery

Lithium ion Battery

Lithium-ion batteries are a type of rechargeable batteries commonly used in consumer electronics. The lithium battery was first developed in 1912 by G.N. Lewis but the rechargeable lithium battery was not commercially available until the early 1970s. Lithium is the lightest of all metals, has the greatest electrochemical potential and provides the largest energy density for weight.

Advantages of Lithium ion Battery

  1. High energy density potential for yet higher capacities.

  2. Does not need prolonged priming when new. One regular charge is all that’s needed.

  3. Relatively low self-discharge self-discharge is less than half that of nickel-based batteries.

  4. Low Maintenance no periodic discharge is needed; there is no memory.

  5. Specialty cells can provide very high current to applications such as power tools.

Limitations of Lithium Ion battery

  1. Requires protection circuit to maintain voltage and current within safe limits.

  2. Subject to aging, even if not in use storage in a cool place at 40% charge reduces the aging effect.

  3. Transportation restrictions shipment of larger quantities may be subject to regulatory control. This restriction does not apply to personal carry-on batteries.

  4. Expensive to manufacture about 40 percent higher in cost than nickel-cadmium.

  5. Not fully mature metals and chemicals are changing on a continuing basis.

Lithium-ion batteries have also been in the news lately. That’s because these batteries have the ability to burst into flames occasionally. Lithium is a special metal in many ways. It’s light and soft — so soft that it can be cut with a kitchen knife and so low in density that it floats on water. In certain circumstances Lithium-ion batteries can be dangerous and can pose a safety hazard because they contain, unlike other rechargeable batteries, a flammable electrolyte and are also kept pressurized. Lithium-ion batteries are the key to lightweight, rechargeable power for laptops, phones and other digital devices.

Facts of Lithium Ion Battery

  • Very good power to weight ratio

  • There are safety issues when charging

  • These batteries produce the same energy as NiMH batteries

  • Found in high end laptop computers and cellular phones

  • Now taking market share away from NiMH

A lithium-ion battery is a member of a family of rechargeable battery types in which lithium ions move from the negative electrode to the positive electrode during discharge and back when charging. Lithium is a chemical element with symbol Li and atomic number 3. It is a soft, silver-white metal belonging to the alkali metal group of chemical elements. Under standard conditions it is the lightest metal and the least dense solid element.

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