Recently, Shenzhen Hoypower Technology Co., Ltd. announced the completion of a Series A+ financing round worth hundreds of millions of yuan. Since the mass production of its solid-state batteries, Hoypower's revenue scale has achieved a compound annual growth rate exceeding 100%, with cumulative shipments surpassing 100 million units. Its large-scale delivery capabilities have been highly recognized by leading customers. Hoypower has successfully achieved key technological breakthroughs in solid-state batteries, including silicon-based anode systems with an energy density ≥400Wh/kg and lithium metal anode systems with an energy density ≥500Wh/kg. These advancements can meet the demands of low-altitude economy unmanned aerial vehicles for high safety and long endurance.

SMM learned that BAIC R&D recently announced the successful development of sodium-ion battery prototypes. The first prismatic battery pack using prismatic battery cells achieved an energy density exceeding 170 Wh/kg, placing it in the industry’s top tier. It also supports 4C ultra-fast charging, enabling recharging in 11 minutes. Its temperature-range adaptability and safety performance are outstanding, with stable operation across an ultra-wide range from -40°C to 60°C, energy retention above 92% at -20°C, and no risk of thermal runaway under extreme scenarios. At present, this sodium-ion battery has completed sample finalization, established mass-production processes for prismatic products, and filed 20 patents around core technologies. BAIC has also leveraged this to complete a full technology roadmap covering lithium batteries, solid-state batteries, and sodium-ion batteries, and has mastered a complete set of core sodium-ion battery technologies.

From March 11 to 13, 2026, the 14th InterBattery 2026 was held at the COEX Convention & Exhibition Center in Seoul, South Korea. As the largest and most representative battery industry exhibition in South Korea, it is on par with China’s CIBF and CLNB.

On March 18, the Chairman of Chery Automobile stated that Chery's solid-state battery pilot production line has developed cells with different energy density levels and is currently conducting extensive rigorous testing. Chery's future investment in all-solid-state batteries will have no upper limit. It is reported that Chery's Rhino Battery S series includes a 60Ah, 400Wh/kg solid-state battery utilizing a sulfide-based solid electrolyte system and high-nickel ternary cathode materials; and a 600Wh/kg solid-state battery using an in-situ polymerization solid electrolyte system and lithium-rich manganese-based cathode materials, achieving a range of over 1500+ km.

According to Gu Chunshan, Vice President of Chery Automobile, as the countdown to mass production and popularization begins, all-solid-state batteries have become the focus of attention for both the industry and users, and Chery will place no upper limit on its future investment in all-solid-state batteries. It is reported that Chery's Rhino Battery S Series 60Ah, 400Wh/kg solid-state battery uses a sulphide-based solid electrolyte system and high-nickel ternary cathode material; the 600Wh/kg solid-state battery uses an in-situ polymerization solid electrolyte system and lithium-rich manganese cathode material, with a driving range of over 1,500 km, and the company aims to carry out vehicle validation by 2027.

This week (March 13, 2026–March 19, 2026), multiple enterprises in the solid-state battery sector were active: Dali Times commenced construction of a 2 GWh specialized semi-solid-state battery base; EVE’s Longquan Phase III/IV all-solid-state batteries rolled off the line in Chengdu; Chery released its 600 Wh/kg Rhino all-solid-state battery technology。

On the evening of March 18, 2026, at Chery Automobile Battery Night 2026 in Wuhu, Anhui, Chery unveiled its Rhino all-solid-state battery technology. It had completed the development and pilot production of a 60Ah, 400Wh/kg all-solid-state battery cell and was advancing toward an ultra-high energy density of 600Wh/kg.

On March 19, EVE's "Longquan No. 3" and "Longquan No. 4" all-solid-state batteries officially rolled off the production line on March 17, marking a crucial step forward for EVE in the industrialisation of solid-state batteries. The two all-solid-state batteries launched this time are major outcomes of EVE's technological R&D in the field of solid-state batteries and also an important milestone on the enterprise's path of technological innovation. Tailored for different application scenarios, the two batteries achieved precise alignment between performance and use cases. Among them, "Longquan No. 3" is aimed primarily at the consumer sector, can operate in a low-pressure environment below 2 MPa, and offers the core advantage of high volumetric energy density; "Longquan No. 4" focuses on the power sector, with its capacity increased to 60 Ah, and can complete cycling under pressure of ≤5 MPa, already demonstrating initial potential for practical application.

Recently, BYD's power battery project (Xixian base) entered trial production. The base has annual capacity of up to 16 Gwh, enough to support about 700,000 NEVs. After commencing production, its annual output value will reach 8 billion yuan, enabling fully independent production across the entire process. [SMM Flash News] Material and Process Iteration! Two All-Solid-State Batteries of EVE Rolled Off the Line in Chengdu, Sichuan. EVE's "Longquan No. 3" mainly targeted the consumer sector and could operate below 2 MPa, featuring high volumetric energy density; the "Longquan No. 4" all-solid-state battery mainly targeted the power sector, with capacity increased to 60 Ah, and could currently cycle under pressure of ≤5 MPa, initially demonstrating practical application potential.

Solid-state batteries were a hot topic at the 2026 Two Sessions, where delegates noted that the industry is at a critical inflection point, moving from “samples” to “products.”