The first generation of all-solid-state batteries enters the large-scale market. "Pure Lithium New Energy" completes a Pre-A+ round of financing worth tens of millions of yuan | Exclusive report from 36Kr

Text | Zhang Bingbing

Editor | A Zhi

36Kr learned that Beijing Pure Lithium New Energy Technology Co., Ltd. (hereinafter referred to as "Pure Lithium New Energy") recently announced the completion of a Pre - A+ round of financing worth tens of millions of yuan. The investor is Yizhuang State - owned Investment, and Yundao Capital serves as the exclusive financial advisor. The funds will be used for product R & D, market expansion, and the establishment of production lines.

"Pure Lithium New Energy" was established in May 2022, focusing on the R & D of all - solid - state batteries. Through self - developed composite electrolytes and supercritical coating technology, it solves the core problem of solid - solid contact in all - solid - state batteries. In April 2023, a pilot production line was built in Yizhuang, Beijing, and 10Ah all - solid - state battery cells were mass - produced. In May 2023, the construction of a 500MWh mass - production line was launched in the Guodian Investment New Energy Industrial Park in Lankao County, Henan. In October 2024, the mass production of 50Ah all - solid - state battery cells was achieved.

"Pure Lithium New Energy" launched its first - generation solid - state battery in 2025. The average weight loss rate of the all - solid - state product is 0.023%. The product has passed the safety certification (CNAS) of the third - party national standard laboratory in accordance with GB/T36276 - 2018. Currently, it is giving priority to promoting the implementation in the energy storage scenario and conducting verification in directions such as low - speed power, accumulating engineering and commercialization foundations for entering the broader power battery market in the future.

I. Self - developed materials and supercritical coating technology to solve the solid - solid contact problem

Solid - state batteries are regarded as the ultimate solution for the next - generation batteries due to their higher energy density and intrinsic safety. However, since the solid electrolyte and the electrode cannot be fully infiltrated like the liquid, it leads to capacity attenuation. The problem of solid - solid contact has always been the core difficulty in the mass production of solid - state batteries.

Regarding the solutions for solid electrolytes, the industry is mainly divided into three major technical routes: sulfides, oxides, and polymers. Many automobile and leading battery manufacturers have invested in R & D. Each of the three technical routes has its own advantages and disadvantages: Sulfides have high ionic conductivity but are extremely sensitive to air, with harsh production conditions and high costs; Oxides have good stability and high voltage resistance but are rigid and have poor interface contact; Polymers have good flexibility and are easy to process, but their ionic conductivity at room temperature is too low and they need to be heated to work. The mass production of vehicle - grade all - solid - state batteries is still in the critical stage.

The first - generation all - solid - state battery of "Pure Lithium New Energy" uses a self - developed organic - inorganic composite solid electrolyte. Through the supercritical coating process, the solid electrolyte enters the supercritical fluid state, achieving in - depth contact with the positive and negative electrodes and achieving an effect similar to that of electrolyte infiltration, thus solving the problem of solid - solid interface contact.

Production line of "Pure Lithium New Energy"

Yang Fan, the founder of "Pure Lithium New Energy", further introduced that the composite electrolyte is a combination of oxides and polymers. It has the advantages of the flexibility, easy processing, and low cost of polymers, as well as the advantages of high ionic conductivity and good performance of oxides. However, it is very difficult to combine polymers and oxides. "Pure Lithium New Energy" self - developed a ternary copolymerized polymer material and a new oxide material to achieve better connection and performance effects.

Different from the chemical process of the mixed solid - liquid phase change reaction, the supercritical coating technology of "Pure Lithium New Energy" is a physical - chemical composite process. It allows the material to enter the supercritical state under a certain temperature and pressure and more uniformly enter the gaps of the granular material to achieve uniform coating. Yang Fan pointed out that more importantly, the solid - state battery developed by the supercritical coating technology does not need to be heated or pressurized in actual use, which becomes an important foundation for the commercialization of solid - state batteries.

Currently, the first - generation all - solid - state battery of "Pure Lithium New Energy" uses a lithium iron phosphate positive electrode and a graphite negative electrode, with an energy density of about 180 - 190Wh/kg. The upcoming updated solid - state battery product will have an energy density of over 200Wh/kg, a cycle life of 6000 - 8000 times, and a rate performance of over 1C, which can meet the needs of daily two - wheeled vehicles, low - speed power, or energy storage businesses.

Regarding the price issue of solid - state batteries that the market is concerned about, Yang Fan introduced that the cost of "Pure Lithium New Energy" has been significantly reduced and it basically has market competitiveness. The core of the cost reduction lies in the low cost of raw materials and the high product yield after process optimization. With the expansion of production scale, there is still room for further cost reduction.

II. Prioritize the energy storage market as the entry point and gradually expand into the power scenario

The "White Paper on the Development of China's Solid - State Battery Industry (2025)" jointly released by research institution EVTank and Yivei Economic Research Institute predicts that all - solid - state batteries will achieve small - scale mass production in 2027, and large - scale shipments will be achieved by 2030. By 2030, the global shipment of solid - state batteries will reach 614.1GWh, and the proportion of all - solid - state batteries will be close to 30%.

Before the large - scale market application of solid - state batteries, "Pure Lithium New Energy" chooses to prioritize entering the energy storage market and simultaneously promotes the verification of power scenarios such as low - speed electric vehicles to achieve industrialization more quickly and launch products into the market. "On the one hand, it can test our market and engineering capabilities; on the other hand, it can create cash flow. On this basis, we continuously iterate our products." Yang Fan summarized.

In the energy storage field, the heavy - asset and distributed layout characteristics of energy storage power stations put forward high requirements for safety. The safety advantage of solid - state batteries is more prominent. At the same time, in the context that all - solid - state batteries are still in the early stage of industrialization, the energy storage market is also more suitable as a priority commercial verification scenario; the advantage of cycle performance can further extend the service life and reduce the full - life - cycle cost. Currently, the cooperation projects of "Pure Lithium New Energy" with Guodian Investment, State Grid, Jingneng Group, etc. have all begun to be implemented.

Production line of "Pure Lithium New Energy"

In the field of low - speed electric vehicles, "Pure Lithium New Energy" launched the "Beijing Yizhuang Two - Wheeled Electric Vehicle Battery - Swapping Project Demonstration" in June 2025. It selected the closed supermarket distribution scenario as a pilot, and invested 1500 all - solid - state batteries, 1000 compliant vehicles, 100 safe battery - swapping cabinets, and 1 pilot data collection, management, and operation platform.

Yang Fan introduced that in order to evaluate the operation effect of solid - state batteries, a large number of sensors were installed on the solid - state batteries. After 3 months of pilot operation of the project, a comprehensive evaluation and test were conducted on the cycle data, voltage conditions, temperature conditions, as well as the charge - discharge conditions and attenuation conditions after cycling. Regarding the evaluation result, Yang Fan believes it can score at least 90 points: "The safety in all aspects is very good. During use, the endurance has also been significantly improved. Previously, the endurance of the batteries for battery - swapping was only 30 - 50 kilometers, but now it can reach up to 100 kilometers, and the riders' experience is very good."

In terms of high - speed power batteries, Pure Lithium New Energy has started the development of high - speed electric motorcycles and gradually launched them into the market. At the same time, it has carried out joint R & D of solid - state power battery products with leading passenger and commercial vehicle enterprises, introducing the Pure Lithium organic - inorganic composite solid electrolyte technology and solid - state battery solutions into the existing new - energy vehicle platforms to improve vehicle safety and endurance.

In 2026, "Pure Lithium New Energy" will prioritize the commercialization of the energy storage market, simultaneously promote the verification of power scenarios such as low - speed electric vehicles, and at the same time develop products with higher energy density for future broader power batteries and consumer - grade drones, robots, portable energy storage, and other product directions.

The "Blue Book on the Development of China's Solid - State Lithium Battery Industry Chain in 2025" released by Gaogong Lithium Battery predicts that from 2027 (or 2028) to 2030, the industry will focus on building GWh - level production lines, and the global shipment of solid - state lithium batteries is expected to exceed 900GWh by 2035.

The 500MWh mass - production line of "Pure Lithium New Energy" has reached its production capacity, and the construction of a GWh - level production line is being promoted. It is expected to be put into production in 2026, with a production capacity of over 1GWh after production. With the increase in production capacity and market expansion, "Pure Lithium New Energy" will achieve a revenue of over 100 million yuan in 2026.

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This article is from the WeChat official account "36Kr Future Industries". Author: Zhang Bingbing, A Zhi. Republished by 36Kr with authorization.