Xiaomi pre-developed solid-state battery technology: the energy density exceeded 1000 Wh/L, and the Xiaomi 13 prototype was installed with a large 6000mAh battery.

Thanks to CTOnews.com netizens for the clues of falling snow and garden blacksmith! CTOnews.com March 1 news, Xiaomi announced this morning pre-research solid-state battery technology, by replacing the electrolyte with solid-state electrolyte, not only the energy density exceeded 1000Wh / L, but also greatly improved low-temperature discharge performance and safety, saying that "it is expected to solve the three major pain points of mobile phone battery".

Xiaomi said that although the practical application of metal lithium negative electrode is still very difficult, it cannot be mass-produced at present. But in the laboratory test, the use of solid-state battery can make the battery energy density break through 1000Wh / L, in the Xiaomi 13 as the prototype of the small fuselage space, installed with 6000mAh super capacity, significantly improve battery life.

CTOnews.com learned from Xiaomi officials that in Xiaomi laboratory environment, the performance of solid-state battery is more than 20% higher than that of ordinary battery at-20 ℃. "even at high latitudes, it can be used without fear of cold."

In addition, Xiaomi says the ability of solid-state batteries to resist acupuncture has improved by leaps and bounds. Xiaomi technical team, by applying solid electrolyte ceramics at the bottom of the positive electrode, when the needle pierced the battery, the solid electrolyte formed a downward bend to wrap the positive collector from the negative electrode, blocking the contact between the positive aluminum foil and the negative electrode material, avoiding the connection between the positive and negative electrodes, thus greatly increasing the passing rate of the acupuncture test and ensuring the safety of use.