Sunwoda and CNGR (Zhongwei) sign solid-state battery materials pact

CNGR Advanced Material (also known as Zhongwei New Materials) and Sunwoda Power Technology have signed a strategic cooperation framework agreement aimed at developing materials and technology for solid-state batteries. The filing frames the deal as an intent-level agreement, with specific projects and commercial terms to be defined in later contracts. [Source: HKEX]

• The agreement targets solid-state-battery cathode precursor development, cathode material development, and related battery co-development, plus discussions on industrialization pathways.
• CNGR’s disclosure stresses the deal is a preliminary framework and that formal project agreements are still required.
• No financial terms were disclosed publicly; CNGR said the financial impact is uncertain at this stage.
• Some media reports link the cooperation to larger-format solid-state EV cells (including 60 Ah), but the CNGR filing itself does not specify a cell capacity.

What was announced

On 2025-12-25, CNGR Advanced Material Co., Ltd. (中伟新材料股份有限公司; Shenzhen-listed as “中伟股份”) disclosed that it signed a “Solid-State Battery Strategic Cooperation Framework Agreement” with Sunwoda Power Technology Co., Ltd. (欣旺达动力科技股份有限公司). CNGR described the document as a framework-level arrangement designed to deepen strategic cooperation and jointly develop a series of new-energy battery materials for solid-state battery applications. [Source: HKEX]

What the cooperation covers (confirmed in the filing)

CNGR’s disclosure outlines a broad scope across R&D, supply, and capacity planning:

• Cathode precursor technology development: The parties aim to jointly develop new precursor products designed to meet future solid-state battery requirements, focusing on high energy density, safety, and cycle life.
• Cathode materials and solid-state battery co-development: CNGR will provide new precursor materials for Sunwoda to develop cathode materials and solid-state batteries intended for commercialization in EVs and energy storage.
• Industrialization cooperation: After material development, the parties will explore industrialization models, leveraging CNGR’s production and processing capabilities alongside Sunwoda’s battery manufacturing strengths.

CNGR also described plans to set up a project working group and to consider longer-term product supply and contract manufacturing cooperation, subject to separate contracts and orders. [Source: HKEX]

What remains uncertain (and why the wording matters)

CNGR repeatedly flags uncertainty typical of framework agreements:

• The agreement is described as framework / intent / preliminary, and CNGR cautions that specific cooperation items require separate formal contracts.
• CNGR says the agreement’s impact on financial results for the current year and future periods is uncertain.
• CNGR further notes the arrangement does not constitute a related-party transaction or a major asset reorganization under relevant rules, and that it does not require shareholder or board approval at this stage. [Source: HKEX]

For industry watchers, this signals that near-term relevance depends on whether the parties quickly move from R&D alignment to binding supply, JV, or project implementation agreements (and whether any such agreements include volume, price, or capacity commitments).

The “60 Ah” angle: what’s reported vs. what’s in the filing

International coverage has increasingly focused on large-format solid-state cells, including 60 Ah class EV cells. CarNewsChina reported the partnership as part of a push toward 60 Ah solid-state EV cells, and also characterized Sunwoda as a supplier to multiple domestic automakers (including BYD), while noting financial terms were not disclosed. [Source: CarNewsChina]

Separately, Battery-Tech Network summarized the cooperation as targeting large-capacity solid-state EV batteries and referenced pilot-scale ambitions for 60 Ah cells, while attributing its reporting to CarNewsChina. [Source: Battery-Tech Network]

However, CNGR’s own disclosure focuses on materials and co-development scope and does not state a specific Ah target. As a result, readers should treat “60 Ah” as media framing linked to Sunwoda’s broader roadmap, rather than a confirmed capacity commitment inside the CNGR filing.

Why this matters for the solid-state supply chain

Solid-state batteries are often positioned as a next-generation pathway to improve energy density and safety, but scale-up depends heavily on materials readiness, interface stability, and manufacturable supply chains. In that context, this cooperation is notable because it explicitly links:

• A major cathode precursor and materials producer (CNGR/Zhongwei), and
• A battery manufacturer with solid-state R&D and manufacturing ambitions (Sunwoda),

into a structured collaboration that spans precursor development → cathode development → battery development → industrialization discussions. [Source: HKEX]

EnergyTrend also highlighted the partnership in the context of accelerating commercialization, emphasizing cooperation across precursor R&D, product supply, cathode R&D, and global capacity layout (though it did not disclose commercial terms). [Source: EnergyTrend]

An exposed EV battery pack and power electronics, used here as a generic reference image for EV battery supply-chain reporting. Source: Wikimedia Commons — “Nissan Leaf 012.JPG”.

Background: Sunwoda’s solid-state roadmap

Prior to the CNGR disclosure, several outlets reported Sunwoda’s progress on polymer-based “all-solid-state” products and pilot-line planning. CnEVPost reported that Sunwoda unveiled a polymer all-solid-state battery described as ~400 Wh/kg with a reported 1,200-cycle performance figure under low external pressure, and that Sunwoda planned a pilot line by year-end. [Source: CnEVPost]

Electrive similarly reported Sunwoda’s presentation of a near-series solid-state battery and an associated pilot line planned for late 2025, based on Chinese media reporting. [Source: Electrive]

These reports help explain why some coverage ties the CNGR–Sunwoda framework to larger-format cells (such as 60 Ah): the cooperation could be interpreted as aligning upstream materials with Sunwoda’s scale-up direction, even if the capacity target is not stated in CNGR’s filing.

The most important next signal will be whether CNGR and Sunwoda disclose follow-on agreements that convert the framework into executable projects—typically covering items such as: (1) specific cathode/precursor chemistries, (2) validation timelines, (3) pilot and production volumes, (4) pricing or supply arrangements, and (5) any new capacity investments.

Investors and industry stakeholders will likely watch for:

• Additional exchange filings or company statements detailing project scope and commercialization milestones.
• Indications that jointly developed precursors move into qualification and stable supply for solid-state cathode development.
• Any mention of pilot cell capacity targets (e.g., 60 Ah-class formats) in official disclosures, rather than only in secondary reporting.

References

• Battery-Tech Network. (2025, December 28). Sunwoda and Zhongwei team up on solid-state EV batteries. Battery-Tech Network.
• CarNewsChina. (2025, December 26). BYD supplier Sunwoda to develop 60 Ah solid-state EV cells with Zhongwei. CarNewsChina.
• CNGR Advanced Material Co., Ltd. (2025, December 28). Overseas regulatory announcement: Announcement on signing the “Solid-State Battery Strategic Cooperation Framework Agreement” with Sunwoda Power Technology Co., Ltd. Hong Kong Exchanges and Clearing Limited (HKEX) PDF.
• CnEVPost. (2025, October 23). Sunwoda unveils next-gen solid-state battery with 400 Wh/kg energy density. CnEVPost.
• Electrive. (2025, October 23). Sunwoda unveils solid-state battery and builds associated pilot line. Electrive.
• National Business Daily (每日经济新闻). (2025, December 25). 中伟股份：与欣旺达签署固态电池战略合作框架协议. National Business Daily.
• EnergyTrend. (2025, December 26). CNGR partners with Sunwoda, accelerating commercialization of solid-state batteries. EnergyTrend.