A significant advancement in battery technology has emerged from China, as an automaker-backed firm, Anhui Anwa New Energy Technology, has unveiled its first-generation solid-state batteries boasting an energy density of 136 Wh/lb (equivalent to approximately 300 Wh/kg). The announcement on July 4, 2025, marks a tangible step towards the commercialization of this promising battery chemistry, moving from laboratory theory to factory production.
Anwa’s Breakthrough in Solid-State Battery Production
Anhui Anwa New Energy Technology, established in June 2020, is not an isolated startup but benefits from strategic backing. Automotive giant Chery New Energy holds a significant stake of nearly 10% in the company, with another 5.89% owned by Gotion High-Tech, a well-known battery manufacturer. This collaboration underscores a concerted effort within China’s automotive and battery industries to accelerate solid-state battery development and integration into electric vehicles.
On July 4, Anwa announced the successful rollout of the first engineering samples of its solid-state batteries from a new production line located in Wuhu, China. While these are currently prototypes for rigorous testing and validation rather than immediate mass-market products, their successful production represents a crucial milestone.
Key Specifications and Safety Features
The first-generation solid-state battery from Anwa Technology achieves an energy density of 300 Wh/kg, which translates to the reported 136 Wh/lb. This figure signifies a notable improvement in energy storage per unit of weight, a critical factor for enhancing the driving range of electric vehicles without adding excessive mass.
Beyond energy density, Anwa officials have also stated that these newly produced batteries have successfully passed a stringent new safety standard, referred to as “No Fire No Explosion.” This addresses one of the primary concerns associated with conventional lithium-ion battery technology, where the liquid electrolytes pose a risk of thermal runaway and fire under certain conditions. The inherent safety advantages of solid electrolytes are a key driver for the global pursuit of solid-state battery technology.
Manufacturing Process and Future Outlook
The production facility established by Anwa for these solid-state batteries highlights the company’s ambitious strategy. The production line is designed for a “full-chain” process, incorporating an innovative 5-step dry manufacturing technique. This dry manufacturing approach is claimed to yield substantial benefits, including a 20% reduction in energy consumption and a 30% reduction in fixed asset investment compared to traditional battery manufacturing methods.
The initial planned production capacity for the factory is 1.25 GWh annually, with a production speed of 20 meters per minute. Anwa’s long-term vision includes expanding the site to encompass a 5 GWh research and development (R&D) center and a more integrated production line in the coming years.
Looking ahead, Anwa has already begun trial production of a second-generation battery, which promises an even higher energy density of 400 Wh/kg. The company has set an ambitious target of 2027 for the volume assembly of its third-generation batteries, aiming for an energy density of 500 Wh/kg. If these targets are met, it could fundamentally reshape the performance and cost dynamics of electric vehicles. While specific vehicle models to feature these batteries have not been definitively confirmed, there have been indications, such as the “All-solid-state battery” branding spotted on Chery’s Exeed Exlantix ET electric crossover, suggesting where this technology might first be integrated.
The Broader Landscape of Chinese Solid-State Battery Development
Anwa’s announcement is part of a wider trend in China, where numerous firms are actively engaged in advancing solid-state battery technology. The country is a leading player in the global race to commercialize these next-generation batteries, with significant investments and breakthroughs from various companies.
Other Key Players and Their Progress
- QingTao Energy Development: This Chinese startup, led by Nan Cewen, a member of the Chinese Academy of Sciences, has been a pioneer in the field. As early as November 2018, Qing Tao’s production line became operational, capable of producing solid-state batteries with an energy density exceeding 400 Wh/kg. More recently, in April 2024, Qingtao Energy’s semi-solid-state battery entered mass production and was integrated into the SAIC Zhiji L6, enabling a cruising range of over 1,000 kilometers.
- WeLion: Beijing WeLion New Energy Technology Co. Ltd. is another prominent firm, known for its semi-solid-state battery cells. Their SHE350-106Ah cell, for instance, offers an energy density of 347.5 Wh/kg. WeLion’s products are being optimized for various applications, including e-bikes, cargo bikes, and electric vehicles, emphasizing enhanced safety and extended lifespan through optimized cell chemistry.
- CATL (Contemporary Amperex Technology Co., Limited): As the world’s largest battery manufacturer, CATL is heavily invested in solid-state battery research and development. The company’s all-solid-state battery technology reportedly has the potential to reach an energy density of up to 500 Wh/kg, with trial production of sample cells beginning in November 2024. CATL aims for small-scale production of all-solid-state EV batteries by 2027.
- Huawei: While primarily a tech giant, Huawei has also entered the solid-state battery arena, filing a patent for a sulfide-based solid-state battery design. This design reportedly targets energy densities between 180 and 225 Wh/lb. Huawei’s interest underscores the cross-industry push for advanced battery solutions.
- LiPure Energy: This Beijing-based firm announced in October 2024 that it had successfully built China’s first production line for all-solid-state lithium batteries and commenced mass production, targeting various sectors including energy storage and electric two-wheelers.
The collective progress of these Chinese firms, alongside collaborations with automakers, indicates a strong commitment to overcoming the challenges associated with solid-state battery technology. While mass production for the broader automotive market is still on the horizon, with many experts anticipating widespread adoption around 2027-2030, the recent announcements highlight the rapid advancements being made in China’s battery industry. The emphasis on both high energy density and enhanced safety features positions solid-state batteries as a transformative technology for the future of electric mobility and energy storage.
