Toyota, Daimler Truck and Volvo Group signed a binding agreement on July 27, 2026, for Toyota to join cellcentric, the fuel-cell joint venture founded by Daimler Truck and Volvo. If regulators approve the transaction, each company is intended to own one third of cellcentric. The deal is for fuel-cell systems—not a jointly developed or announced hydrogen truck—and the companies expected the transaction to close around year-end 2026 or early 2027.
What did the companies agree to do?
Toyota, Volvo Group, Daimler Truck and cellcentric agreed to combine their work on fuel-cell systems for heavy-duty commercial vehicles and other applications with comparable requirements. Toyota is to become an equal partner and shareholder in cellcentric once the transaction closes. The July 27 agreement is binding, but completion remains conditional on regulatory approvals. Volvo Group’s July 27 announcement said the parties expected closing around year-end 2026 or early 2027.
That timing is a company forecast, not confirmation that the deal has closed. The latest dated official announcement available here says the agreement was signed and subject to approvals; it does not establish that Toyota already holds a stake.
What is cellcentric, and what will it work on?
Founded on March 1, 2021, as a 50:50 joint venture between Daimler Truck AG and Volvo Group AB, cellcentric develops, produces and commercializes fuel-cell systems for heavy-duty vehicles and applications with similar requirements. The announced partnership adds Toyota to that supplier business if the transaction completes; it is not a merger of the three parent companies.
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The March announcement described both broad fuel-cell-system work and a more specific collaboration between Toyota and cellcentric on fuel-cell unit cells—the core component of a fuel-cell system—along with directly linked architecture and control elements. Those are system-development activities, not an announcement of a finished vehicle or a particular truck platform. The March 31 announcement first described Toyota’s intention to join as an equal shareholder under a non-binding plan.
Applications beyond long-haul trucks
cellcentric’s stated customer scope includes heavy-duty on-road and off-road transport, coaches, stationary power generation, marine, rail and heavy off-highway equipment. The companies also say they intend to work with associations and value-chain partners to support hydrogen supply and infrastructure development. They have not identified specific infrastructure projects or suppliers in the agreement announcement. Daimler Truck’s July announcement sets out the intended scope and continued independent operation of cellcentric.
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What each partner brings
| Partner or business | Announced contribution or role |
|---|---|
| Volvo Group and Daimler Truck | Commercial-vehicle experience; they founded cellcentric and have operated it as a joint venture. |
| Toyota | Fuel-cell development, production technology and manufacturing experience. |
| cellcentric | Develops, produces and commercializes fuel-cell systems for heavy-duty uses and comparable applications. |
The March announcement describes these contribution areas as the rationale for combining capabilities; it does not assign exclusive technical work packages to each company. The partners say they aim to improve technology, industrial scale and competitiveness. Those are goals, not reported results. Toyota’s March 31 announcement describes the proposed collaboration and its intended contributions.
Does this mean a Toyota-Volvo-Daimler hydrogen truck is coming?
No truck model, retail vehicle, launch date or joint vehicle-development program was announced in the cited releases. The agreement focuses on fuel-cell systems and related components, which are used in vehicles but are distinct from designing, integrating and selling a complete truck. A vehicle maker could use such systems in its own product, but the announcements do not say which models, if any, will do so.
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- The Hydrogen fuel trolley uses zinc particles and food grade citric acid to synthesize hydrogen, and then uses the produced hydrogen and air to generate electricity to drive the trolley.
- During the experiment, please use 80℃ hot water for Combination reaction (if the water temperature is low, the amount of hydrogen and air pressure from the Combination reaction are insufficient, the fuel cell cannot be used for power generation), and then take off the plug of the vent pipe at the lower part of the fuel cell, release the gas in the rubber hose immediately, and then plug it back immediately, so that only pure hydrogen and air are in the fuel cell, so that the fuel cell can generate hydrogen air power.
Are the companies merging?
No. The agreement concerns cellcentric and fuel-cell collaboration. The July announcement says Toyota, Volvo Group and Daimler Truck will continue to compete independently in other areas of their businesses. cellcentric itself is intended to continue as an independent and autonomous company serving customers across the listed applications. Volvo Group’s agreement announcement distinguishes the joint venture from the parent companies’ other business activities.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Why make the deal?
Fuel-cell systems for heavy commercial uses require vehicle expertise, fuel-cell technology and the ability to manufacture at industrial scale. The companies’ stated rationale is to pool complementary experience and pursue better technology, scale and competitiveness while supporting hydrogen supply and infrastructure. In March, Volvo Group CEO Martin Lundstedt said the collaboration could help “accelerate and create critical mass for hydrogen applications.” That is the executive’s stated ambition, not evidence that commercial scale has already been achieved. Volvo Group’s March announcement contains the statement and the companies’ original rationale.
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- Name: Hydrogen Fuel Cell
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- 1. Electrical part: motor with wind shoulder, ammeter, voltmeter.
- 2. Ammonia fuel cell.Hydrogen's electrons travel from the anode to the cathode through an external circuit, generating an electric current. At the cathode, the electrons, protons, and oxygen in the air combine to produce water, which is the main by-product of the fuel cell.
- 3. PEM (proton exchange) water electrolyzer.Gaseous hydrogen is sent to the anode of the membrane, and air is sent to the cathode. The hydrogen atoms are stripped of electrons on the anode side, and the positively charged protons pass through the membrane to reach the cathode. In order for this reaction to occur, a platinum catalyst must be used.
- 4. The two proton exchange membrane electrodes in the organic base and the presenter are 35mm*35mm. Experimental steps. Add deionized water to the water level in the PEM water electrolyzer. The amount of water should not be too much to prevent water from flowing into the battery. After adding water, connect the hydrogen gas outlet on the water electrolyzer to the hydrogen gas inlet on the electrical energy with a gas pipe.
- 5.Then connect the 6V-12V DC power supply to the positive and negative wiring of the water electrolyzer part, and connect the transportation line of the electrical part to the electric energy after 2-3 minutes, the small motor starts to work, and the current is displayed on the current and voltmeter. Positive value.
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