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Leyden Energy constructed a new type of lithium-ion battery that it claims has an energy density of 225 Wh/kg, nearly twice that of typical lithium-ion batteries, which is usually less than 120 Wh/kg.

Batteries

Li-ion Batteries with Nearly Double the Usual Energy Density

Leyden Energy constructed a new type of lithium-ion battery that it claims has an energy density of 225 Wh/kg, nearly twice that of typical lithium-ion batteries, which is usually less than 120 Wh/kg.

leyden energy makes li-ion battery breakthrough

Leyden Energy constructed a new type of lithium-ion battery that it claims has an energy density of 225 Wh/kg, nearly twice that of typical lithium-ion batteries, which is usually less than 120 Wh/kg.

It said that it was able to manufacture them like this safely due to the fact that they can be operated at high temperatures without breaking down or exploding. More energy-dense lithium-ion batteries tend to explode more violently and are hence more dangerous than traditional ones, but they provide electric vehicles with a longer driving distance per charge.

Lithium-ion battery explosions are not common, but the fact that they can is a concern to many people… and it would have a pretty bad effect on the public perception of EVs  if people saw them exploding when they shouldn’t.

This type of battery is constructed with a graphite current collector and the sodium imide in the electrolyte. The current collector is made of graphite because a traditional aluminium one would be corroded by the sodium imide.

Energy density is actually a financial problem for electric vehicles due to the fact that a better energy density translates into a reduced number of batteries required, hence reducing the cost of the vehicles significantly (since the batteries account for an enormous fraction of their cost). A breakthrough in energy density like this, if true and without drawbacks, could mean great news for EV companies and EV lovers.

Related Articles:

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  3. Hybrid Nanocables Could Boost Lithium-Ion Battery Performance
  4. Wax and Soap Combo Could Lead to Cheaper Lithium-Ion Batteries
  5. American Battery Maker Seeks Goal to Mass-Produce Lithium-Ion Battery for Hybrid and Electric Vehicles

Image: screenshot of Leyden Energy website

 
 
 
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writes on CleanTechnica, Gas2, Kleef&Co, and Green Building Elements. He has a keen interest in physics-intensive topics such as electricity generation, refrigeration and air conditioning technology, energy storage, and geography. His website is: Kompulsa.com.

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