Anode-Free Sodium-Ion Battery Track Heats Up, Yin Gong Technology's Pre-A+ Round Outlines "Technology + Capital + Industry" Triangular Synergy [SMM Analysis]

SMM July 2 news:

The sodium-ion battery sector has ushered in another landmark event. Recently, anode-free sodium-ion battery technology company Yingong Technology announced the completion of a hundred-million-yuan-level Pre-A+ round of financing. This round was co-led by Qifu Capital and Fudan Science and Innovation Fund, with follow-up investments from Suzhou Science and Technology Venture Capital, Xianghe Capital, and a global lead-acid battery top-tier player. From the investor composition perspective, this round has transcended mere financial infusion, presenting a composite architecture of triple empowerment: "technology endorsement + industrial resources + regional policies," reflecting the sodium-ion battery industry's accelerated shift from the technology validation phase to the large-scale volume production phase.

Differentiated Breakthrough of the Anode-Free Route

Yingong Technology's core technological barrier lies in its "anode-free" sodium-ion battery route. Unlike traditional sodium-ion batteries that require coating active materials such as hard carbon on the anode side, the anode-free approach does not deploy anode active material in the initial state; sodium ions are deposited in situ on the current collector surface during the first charge to form a metallic sodium anode. The theoretical advantages of this technical path are significant: it eliminates the cost of anode active materials while avoiding the supply chain constraints and performance ceiling of hard carbon materials, achieving structural optimization at both the energy density and cost ends.

The company's chief scientist, Professor Wang Fei, hails from the School of Intelligent Materials and Future Energy Innovation at Fudan University. His team's cutting-edge research in the anode-free sodium-ion battery field has provided foundational support for productization. Currently, the company has developed three major series of battery cells around this technology—high specific energy (Yinfeng), high power (Yinsu), and high safety (Yinhu)—covering all scenarios from energy-type to power-type applications, with the product matrix already taking initial shape.

Deep Logic of the Investor Matrix

The investor mix in this round deserves careful scrutiny, as its structural layout covers nearly all key resources needed by a hard technology enterprise during its growth stage.

Qifu Capital, as a veteran player in the early-stage hard technology sector, possesses profound industry chain judgment in the new energy and new materials fields. Its role as a co-lead investor signals professional capital's endorsement of the commercial feasibility of the anode-free technology route. Qifu explicitly stated that Yingong Technology "substantially reduces sodium-ion battery costs while achieving high energy density comparable to lithium batteries," a judgment that directly points to the core logic of sodium-ion battery industrialisation—achieving cost advantages without sacrificing performance.

The participation of the Fudan Science and Innovation Fund has closed the loop of "alma mater fund—professor team—industrial transformation." This model already has precedents in the new energy sector, and the path of university-originated technologies achieving industrialisation leaps through dedicated funds is becoming increasingly mature. For YinGong, the backing from the Fudan ecosystem means not only capital input, but also sustained support in industry–academia–research synergy, talent pipeline building, and undertaking national-level projects.

What deserves attention is the identity of the industrial strategic investor—a global top-tier player in lead–acid batteries. The lead–acid giant’s cross-sector entry into sodium-ion batteries reveals a clear strategic intent: in application scenarios such as light-duty power and start–stop power supplies, lead–acid batteries are being squeezed by both lithium and sodium-ion batteries. Rather than passive defense, it is better to proactively deploy next-generation alternatives. For YinGong, the top-tier lead–acid player’s channel network and client resources will provide a natural springboard for rapid market penetration of its products, especially in highly overlapping sub-markets like two-wheeler start–stop power supplies.

The additional investment from the regional state-owned capital represented by Suzhou Innovation and Technology Venture Capital will help the company gain policy support for capacity expansion as well as factor support such as land and energy within the Yangtze River Delta manufacturing cluster. Xianghe Capital’s continued follow-on investment has further strengthened the capital market’s long-term trust in the company’s commercial enforcement.

From “technology validation” to “capacity release”: a critical leap

According to disclosures, this round of funding will mainly be used for the construction of new production lines and the iteration and R&D of multi-technology-route sodium-ion battery products. The purpose is clearly targeted—the company is moving from lab and pilot-scale stages toward GWh-level mass production.

Industry significance: the sodium-ion track enters the “capital screening” phase

Another industry-wide significance of YinGong Technology’s latest financing round is that it signals the capital flow in the sodium-ion battery space is shifting from “casting a wide net” to “precision investment.” Since 2023, the sodium-ion track has undergone a full cycle of investment boom and rational correction. At the current stage, capital is more inclined to bet on enterprises that possess differentiated technology routes, clear commercialization scenarios, and capabilities in integrating industrial resources. YinGong Technology, combining “original technology + university endorsement + industrial capital,” fits this screening criterion exactly.

From a broader macro perspective, the sodium-ion battery industry is in a transitional period, switching from “policy-driven” to “market-driven.” Since 2025, installations of sodium-ion batteries in applications such as light-duty power and energy storage demonstration projects have continued to climb, and downstream application-end acceptance of sodium-ion battery products has notably increased.

Established in December 2023, YinGong Technology has, in less than three years, achieved a rapid leap from technology validation and product development to securing financing at the 100-million-yuan level. After this funding round, the pace of capacity construction and the speed of product iteration will become key yardsticks for testing its commercialization capability. On the eve of the sodium-ion battery industry's full-scale volume ramp-up, every step of Yingong Technology's progress deserves continuous attention.

SMM New Energy Research Team

Wang Cong 021-51666838

Ma Rui 021-51595780

Feng Disheng 021-51666714

Lyu Yanlin 021-20707875