Next-generation battery that is hard to deteriorate
The Volkswagen Group has announced the results of tests on solid-state battery cells jointly developed with partner company QuantumScape. It is said to have a longer cruising range than conventional lithium-ion batteries and to significantly reduce deterioration.
Tests conducted in Germany involved more than 1,000 charge-discharge cycles. This is equivalent to driving approximately 500,000 km for an EV with a cruising range of 500 to 600 km, after which the battery storage capacity of the cell decreased by 5%.
Tests conducted by VW revealed that the cells had little deterioration.
According to PowerCo, the Volkswagen Group’s battery division, current industry standards call for 700 charge/discharge cycles and a storage capacity loss of up to 20%. The current test results far exceed this.
The company said in a statement that the new solid-state battery cells also met other test requirements such as fast charging capability, safety and natural discharge.
“This is a very encouraging result,” said Frank Blohm, CEO of PowerCo. It might be possible.”
All-solid-state batteries replace the liquid electrolyte and separator of lithium-ion batteries, which are considered to be flammable, with solid separators made of ceramic, polymer, or glass.
The Volkswagen Group has been working with QuantumScape on the development of solid-state battery technology since 2010. In 2012, he invested $100 million in the company and became its largest shareholder. Since then, the company has invested an additional $200 million to improve EV performance and lower prices.
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2024-01-07 07:07:44
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