While companies like Honor, vivo, and Realme have already released phones equipped with 10,000mAh batteries, Huawei is preparing to enter this elite space, as reported by the leakster Digital Chat Station. The company is said to be developing a battery with a capacity exceeding "10,000mAh+++".
The precise capacity remains undisclosed, but the numerous pluses indicate significant advances. According to DCS, Huawei has innovated a new battery material and system, enabling the creation of a phone with the industry’s highest battery capacity.

Currently, the nova 15 Max and the Enjoy 90 Pro Max hold the title for the largest batteries in Huawei's lineup, each featuring an 8,500mAh capacity and supporting 40W wired charging.
The specifics of this new battery material remain unclear. Notably, the Enjoy 90 Pro Max employs Silicon-Carbon technology, which is also utilized in the current generation of 10,000mAh smartphones.
Via