Leading Chinese battery manufacturer Sunwoda has officially announced that it has successfully mass-produced a massive 10,000mAh smartphone battery, marking a significant milestone in mobile power density. The announcement was disclosed via the Shenzhen Stock Exchange’s interactive investor platform (SZSE Multi-Interactive).
In addition to this ultra-high-capacity cell, Sunwoda revealed that it has already begun mass-producing and deploying semi-solid-state batteries for smartphone applications. Although the next-generation battery technology is still in the active research and development phase, the company notes that its commercial integration is underway, with specific progress milestones to be shared in future official announcements.
According to public records, Sunwoda has been heavily invested in the solid-state space for a decade, kicking off its dedicated R&D in 2015. The firm’s technology roadmap outlines first-generation cells targeting 400 Wh/kg and second-generation iterations aiming for 500 Wh/kg in the all-solid-state category.
In September 2025, Sunwoda confirmed that its first-generation semi-solid-state batteries had completed development with an energy density exceeding 300 Wh/kg. Meanwhile, cell samples for its second-generation semi-solid-state line have entered pilot-scale trial testing. The company’s third-generation all-solid-state project has also completed initial 400 Wh/kg product scheme planning and manufacturing process validation, paving the way for commercially viable next-gen mobile energy.
