Key points: This week (4.17-4.23), the industrialisation process of solid-state batteries accelerated significantly. Greatpower Technology signed two strategic cooperation agreements and advanced a 2.8 billion yuan project; PingAn New Energy and Jinghe Energy each completed all-solid-state pilot lines, with battery cell energy density exceeding 400Wh/kg. On the material side, Sinocera Materials completed an automated sulphide electrolyte production line, and Gotion Holdings signed the world's first 20,000 mt solid-state key material project. CATL released the Kirin condensed-state battery.
The solid-state battery sector continued to heat up this week, from strategic layouts of top-tier enterprises to industrialisation breakthroughs in key materials, the industry is accelerating its transition from the laboratory to the production line. The following summarises this week's key developments from three dimensions: strategic cooperation, materials and equipment, and technology routes.
Materials: This week (4.17-4.23), solid-state battery material prices showed clear divergence. Affected by lithium prices, third-generation LFP, 811 ternary cathode material, and lithium metal prices rose. However, core raw materials for the sulphide route collectively plunged — lithium sulphide dropped sharply by 70 yuan/kg to 1,780 yuan, LPSC sulphide electrolyte fell 290 yuan to 9,220 yuan/kg, with even lower prices at the mt-level in the market. P₂S₅ declined 1.2 yuan/kg to 68.8 yuan due to falling raw material costs, and oxide route LATP and LLZO prices also edged down slightly.
Sulphide electrolyte once deterred industrialisation due to high prices. Now, with raw material prices easing, combined with the completion of Sinocera Materials' production line and Gotion Holdings' 20,000 mt project signing, it appears that the once "prohibitively expensive" sulphide route is accelerating into the affordable fast lane. "Material freedom" for solid-state batteries may arrive sooner than expected.
I. Core Highlights
The solid-state battery industry exhibited three notable characteristics this week: first, top-tier battery enterprises accelerated the construction of entire industry chain closed loops with material and recycling enterprises; second, the sulphide electrolyte route achieved critical industrialisation breakthroughs; third, multiple enterprises announced the commissioning of all-solid-state battery pilot lines or A-sample rollouts, with mass production timelines becoming increasingly clear.
II. Strategic Cooperation and Industrial Ecosystem
1. Greatpower Technology: Two strategic cooperation agreements signed within one week, with a 2.8 billion yuan project advancing simultaneously
This week, Greatpower Technology became one of the most active enterprises in the solid-state battery field.
(1) Signed agreement with GEM to co-build a circular industry chain
On April 22, Greatpower Technology signed a strategic cooperation agreement with Wuhan Power Battery Regeneration Technology Co., Ltd., a subsidiary of GEM, to co-build a full life cycle green industry chain for power batteries covering "battery cell manufacturing – battery recycling – material regeneration – remanufacturing," innovating a "scrap-for-raw-material" model.
(2) Signed agreement with Hubei Lihe New Energy to deploy all-solid-state battery cells
On April 21, Greatpower Technology signed a strategic cooperation agreement with Hubei Lihe New Energy, a subsidiary of Tianyan Group, to jointly develop all-solid-state battery cells and high C-rate battery cells for applications including electric motorcycles, drones, robots, small power, and household ESS.
(3) 2.8 billion yuan project advancing simultaneously
According to disclosures, Greatpower Technology plans to advance a power battery project with a total investment of 2.8 billion yuan, simultaneously deploying solid-state battery capacity. Phase I plans 3 Gwh of LFP capacity and 1 Gwh of solid-state battery capacity, while Phase II plans 4 Gwh of capacity.
Greatpower Technology previously completed the rollout of all-solid-state battery A-sample cells, verifying the feasibility of the composite electrolyte route. The company targets initiating Gwh-level mass production within 2026, striving for official vehicle installation in Q1 2027. Its solid-state battery project has been selected as a key project by the National Development and Reform Commission (NDRC), receiving national-level endorsement across technology, funding, industry, and strategy dimensions.
2. Jinghe Energy and Sungrow New Energy strategic cooperation
On April 20, Jinghe Energy and Sungrow New Energy officially signed a strategic cooperation agreement, focusing on all-solid-state battery R&D and applications, jointly deploying PV+ESS integration and the solid-state battery industrialisation track. Jinghe Energy specialises in sulphide solid-state battery technology, addressing industry pain points such as interfacial impedance, and has released the "Starry Jinghe" all-solid-state power battery (60Ah, energy density exceeding 450Wh/kg), planning small-batch delivery within 2026 and mass production in 2027.
III. Materials and Equipment: Accelerating Industrialisation of the Sulphide Route
1. Sinocera Materials: Completed automated sulphide solid-state electrolyte production line
On April 20, Sinocera Materials stated at an analyst meeting that the company focuses on the sulphide solid-state electrolyte route and has co-invested with Dr. Wang Yan to establish a joint venture. Product performance has received high recognition from clients. The automated sulphide solid-state electrolyte production line has been completed, and further capacity expansion will follow based on industry conditions.
2. Gotion Holdings: World's first 20,000 mt solid-state battery key material project signed
On April 18, Gotion Holdings' 20,000 mt/year solid-state battery key material project was signed and settled in Daguan District, Anqing, Anhui. This project is the world's first industrialisation project for solid-state battery key materials, planning to build a 20,000 mt solid-state battery key material R&D and production site, with production line construction expected to be completed in 2027. The project benefits from industrial synergies with Sinopec Anqing Branch.
3. Ronbay Technology: Ten-mt-level shipments of solid-state cathode, sulphide electrolyte pilot line under construction
According to Ronbay Technology's 2025 annual report, the company covers dual-route deployment of solid-state cathode and sulphide/halide electrolyte. On the solid-state cathode side, ultra-high-nickel monocrystalline products achieved ten-mt-level shipments, compatible with 400Wh/kg battery cell development, serving top-tier battery/automaker clients in and outside China. The sulphide electrolyte pilot line is under construction, with industry-leading performance metrics.
4. Other material enterprise developments
Xingfa Group disclosed that new products including battery-grade P₂S₅ are expected to enter production successively from Q2, potentially contributing new profits. Changyang Technology's electrolyte composite membrane base film for solid-state or semi-solid-state batteries has received orders from a top-tier client in the low-altitude economy sector. Zhenhua New Material's mid-nickel high-voltage and high-nickel ternary cathode materials compatible with solid-state batteries achieved hundred-mt-level shipments.
5. Equipment side
Lyric turned from loss to profit in 2025, with all-solid-state battery complete-line equipment successfully delivered to top-tier enterprises. Core products include electrode dry coating, electrolyte thermal composite integrated machines, and lamination integrated machines. Sunano Intelligent stated that its wet, semi-dry, and dry pole piece manufacturing products can all be adapted to solid-state battery manufacturing needs.
IV. Battery Enterprise Progress: All-Solid-State Batteries Moving from Laboratory to Production Line
1. PingAn New Energy: China's first mass-producible all-solid-state battery pilot line commissioned
On April 20, Guangdong PingAn New Energy announced the official commissioning of its all-solid-state battery pilot line, covering full-process procedures with supporting professional laboratories. The company adopts a true all-solid-state route without liquid electrolyte, with battery cell energy density exceeding 400Wh/kg, and has achieved small-batch delivery of 3C consumer battery cells. The enterprise was established at the end of 2025, has completed early-stage financing, and is accelerating industrialisation.
2. CATL: Kirin condensed-state battery released
On April 21, CATL released multiple new products including the Kirin condensed-state battery at its Super Technology Day. The Kirin condensed-state battery applied aviation-grade condensed-state technology to passenger vehicles for the first time, with battery cell energy density of 350Wh/kg, sedan driving range reaching 1,500 km, and full-size SUV driving range exceeding 1,000 km. This technology is essentially a semi-solid-state/quasi-solid-state route, replacing traditional liquid electrolyte with polymer condensed-state gel electrolyte, combining high energy density, high safety, and mass production feasibility.
3. Other enterprise developments
Nissan updated its battery technology roadmap, having successfully stacked up to 23 layers of battery cells in a single solid-state battery pack prototype, at a scale sufficient for real-vehicle installation, and is advancing towards the goal of launching its first solid-state battery EV in 2028. Foton Motor's co-developed hybrid solid-liquid battery has achieved mass market launch, while all-solid-state batteries are at the technology reserve and product development stage.
4. Risk alert: Uncertainty in Guosheng Technology's project advancement
Guosheng Technology disclosed that loan funds for its solid-state battery industry chain intelligent manufacturing project have yet to be secured. Project advancement and commercialisation prospects remain uncertain, with half a year having passed since the investment intention was disclosed.
V. Technology Frontier
Hong Kong University of Science and Technology: New-type COF solid-state electrolyte material
A team from the Hong Kong University of Science and Technology successfully synthesised a new-type monocrystalline three-dimensional borate covalent organic framework material (B-COF) that can be used as a solid-state electrolyte. This material achieved room-temperature ionic conductivity of approximately 8.1 mS/cm and a lithium-ion transference number close to 1 in a quasi-solid-state system, stable cycling exceeding 2,000 hours in symmetric batteries, and 91.8% capacity retention after 600 cycles in full cells based on LFP cathode, with coulombic efficiency reaching 99.98%.
VI. Outlook
The mid-term review of solid-state batteries proceeded as scheduled, with pilot line samples from various enterprises undergoing rigorous testing. Technology solutions are further converging, certainty is gradually increasing, and top-tier battery manufacturers and automakers are expected to initiate a new round of tender.
Key areas to watch going forward:
Further information disclosure on Greatpower Technology's Gwh-level production line construction;
Progress of Gotion Holdings' 20,000 mt material project production line construction;
Downstream client verification progress of Sinocera Materials' sulphide electrolyte;
Production commencement of Ronbay Technology's sulphide electrolyte pilot line;
Small-batch delivery progress of Jinghe Energy's "Starry Jinghe" battery.
**Note:** For further details or inquiries regarding solid-state battery development, please contact:
Phone: 021-20707860 (or WeChat: 13585549799)
Contact: Chaoxing Yang. Thank you!
