Company introduces ‘superior’ solid-state battery technology

Chinese manufacturer Xiaomi is currently testing solid-state batteries in smartphones. The company has now equipped its modified Xiaomi 13 with this battery in the lab, which has a capacity of 6,000mAh. Not only should the battery be more powerful, but it should also be safer and work better in cold environments.

The new battery should lead to more selection of battery materials

Xiaomi’s tests with the solid-state battery are said to have revealed three milestones. The battery is said to have achieved 1,000 watt-hours per liter, plus it offers a 20 percent improvement in low-temperature discharge performance and a significant increase in the success rate in pin-prick tests. In a battery, the traditional liquid electrolyte has been replaced by a solid electrolyte.

It is said that the main advantage of solid state batteries is their improved performance at lower temperatures. The conventional liquid electrolyte has a high viscosity at low temperatures, which hinders the transport of lithium ions. This will severely affect battery performance. However, with the solid material of a solid-state battery, the conductivity of lithium must be maintained even at low temperatures. In Xiaomi’s tests, the solid-state battery is said to have shown more than 20 percent performance increase at minus 20 degrees Celsius compared to conventional batteries.

In addition, the new technology should be more resistant to damage. Xiaomi uses positive electrode coatings in its technology. This is to enclose the positive current collector fluid and separate it from the negative electrode. This also prevents contact in the event of a puncture, which also increases safety in the event of damage.

source: XiaomiAnd golem