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Fast Technology reported on July 18 that today, Xiaomi announced that MIX Fold 4 is equipped with Xiaomi Jinshajiang three-dimensional special-shaped battery, which is a new type of battery tailored for folding screens.

Its space utilization rate is increased by 9%, the power is increased by 260mAh, and 5100mAh is crammed in. The comprehensive DOU battery life is up to 1.47 days, challenging the longest battery life in the market.

It is reported that Xiaomi Jinshajiang battery uses the latest generation of silicon-carbon negative electrode technology, and its gram capacity exceeds the theoretical limit gram capacity of graphite by 15%.

In addition, Xiaomi Jinshajiang battery adds organic polymer compounds, and through in-situ film-forming technology, it forms a bionic self-healing elastic barrier, which greatly increases the ductility of the film.

More importantly, it can promptly repair particle cracks generated during multiple cycles. In order to make the material particles more firmly bonded, the silicon-carbon negative electrode uses high-strength copper foil and high-toughness adhesive to ensure the excellent performance of Xiaomi Jinshajiang batteries.

Xiaomi MIX Fold 4 equipped with Jinshajiang battery will be released on July 19.