Protecting Know-How In E-Mobility Materials – Insights From BASF vs Duracell
The BASF vs Duracell case shows how fragile trade secrets become when collaboration and competition👉 Rivalry between entities striving for a shared goal or limited resource. intersect. BASF accuses Duracell of misusing confidential process know-how for lithium-ion battery materials that was shared in a joint project, while Duracell points to its own patents and claims independent development. The article explains the different histories and success mechanisms of both companies and why battery ecosystems depend on a smart mix of patents and trade secrets. It outlines how an IP strategy👉 Approach to manage, protect, and leverage IP assets. must combine clear contracts, trade secret registers, access control, and evidence management, with defined roles for IP, R&D, and negotiators. The key message: systematic trade secret management👉 Protects confidential business info for competitive advantage. is essential to keep high-tech partnerships both innovative and legally resilient.
Background material on the IPBA Connect platform
Here 🧭diplex pages by IP subject matter experts:
- Litigation of Trade Secrets by Dr. Axel Oldekop
- Trade Secrets by Chris Buntel
- Collaborative IP Management by Bernd Bösherz
Here the relevant 🔎IP Management👉 Strategic and operative handling of IP to maximize value. Glossary entries on:
Introduction: Why The BASF vs Duracell Case Matters For Trade Secrets
The dispute between BASF and Duracell over an industrial process for lithium-ion battery materials is more than a single courtroom story. It illustrates how collaboration and competition in high-tech ecosystems are tightly linked, and how fragile the line can be between legitimate knowledge sharing and alleged misappropriation. In April 2025, BASF accused Duracell of using confidential know-how from a joint collaboration to implement a novel large-scale process for producing battery materials, while Duracell claims independent development and points to a portfolio of patents covering its technology. At stake is not only the outcome of a lawsuit, but the way companies structure their entire trade secret and patent👉 A legal right granting exclusive control over an invention for a limited time. strategy in collaborations.
BASF and Duracell both operate in a technology and capital intensive field. Success in this environment depends on mastering complex supply chains, scaling process technologies, and building trust-based collaborations without becoming vulnerable. The case shows that legal tools such as patents and trade secrets are not abstract doctrines but concrete instruments that either enable or endanger ecosystems, depending on how systematically they are handled.
BASF And Duracell – Two Different Histories In The Same Battery Value Chain
BASF is a global chemistry group with more than a century of experience in industrial innovation👉 Practical application of new ideas to create value. and large-scale process engineering. In the battery sector, the company has positioned itself as a key provider of cathode active materials, lithium-ion battery technologies, and increasingly of battery recycling solutions. Its business model👉 A business model outlines how a company creates, delivers, and captures value. in this field relies on deep R&D capabilities, strong integration into the automotive value chain👉 A series of activities that create and deliver value in a product for end-users., and the ability to supply materials in huge volumes with consistent quality. For BASF, success mechanisms include process excellence, long-term supply agreements with OEMs and cell manufacturers, and a mix of patents and confidential know-how that stabilizes its competitive edge.
Duracell, by contrast, is one of the most recognized consumer battery brands worldwide. Introduced in the 1960s and now part of Berkshire Hathaway, Duracell has built its business on brand👉 A distinctive identity that differentiates a product, service, or entity. reputation, reliability, and global distribution for alkaline and lithium coin batteries. Its mechanisms for success differ from BASF: consumer trust, marketing, product performance in everyday devices, and a manufacturing system optimized for cost-efficient mass production. At the same time, Duracell has to expand into new chemistries and formats as markets move toward rechargeable and e-mobility related solutions, which explains its interest in advanced lithium-ion materials and process technologies.
Although BASF and Duracell come from different ends of the value chain, both need each other’s strengths when it comes to advanced materials and high-volume production. The collaboration that later ended in dispute was built on this complementarity: BASF’s deep process know-how in cathode materials and Duracell’s scale and market reach in batteries.
The Collaboration And The Dispute – What Happened Between BASF And Duracell
According to the case description, the collaboration focused on a novel process to produce lithium-ion battery materials efficiently at industrial scale. Such processes are not just incremental improvements; they often determine the cost structure, energy footprint, and quality profile of the final cells. For BASF, the process represented confidential know-how and a potential platform for future partnerships along the e-mobility supply chain. During the collaboration, BASF shared trade secrets related to this process under confidentiality arrangements, expecting that the jointly explored technology would either be commercialized together or at least used in a way that respected the agreed allocation of rights.
When Duracell later implemented a process that BASF believed to be based on this confidential know-how, BASF claimed “flagrant misappropriation” of trade secrets. Duracell countered that the technology stemmed from a parallel independent development program and pointed to a large number of patents it had already filed in relation to the process. This creates a classic conflict pattern in trade secret law: one side emphasizing confidential sharing and reliance, the other emphasizing independent development and the public, patent-based nature of the knowledge it uses.
Regardless of how the court will finally assess the facts, the case highlights a critical lesson: collaborations in high-tech fields must be designed on the assumption that partners may later become rivals in litigation. The way trade secrets and patents are used from the outset determines how resilient an ecosystem will be when trust erodes.
Mechanisms For Success In Collaborative Battery Ecosystems
In the battery industry, no single company can cover the entire innovation space. Raw material suppliers, cell manufacturers, equipment makers, automotive OEMs, energy utilities, and recycling specialists interact in a dense web of partnerships and co-developments. Success therefore depends on mechanisms that allow knowledge to flow where it creates value, without eroding competitive advantage.
For companies like BASF, key mechanisms include modular process architectures that can be partially shared, staged disclosure of know-how during pilot phases, and contractual arrangements that distinguish clearly between background technology and jointly created foreground results. For companies like Duracell, success mechanisms include integrating partner technologies into their product platforms while maintaining flexibility to switch suppliers or processes if legal or commercial conditions change.
In such ecosystems, trade secrets and patents work together to create a stable yet flexible structure. Patents make parts of the technology transparent and licensable, enabling standardization and broader adoption. Trade secrets protect the subtle process details, recipes, parameter windows, and negative know-how that make the difference between a lab concept and a robust industrial solution. The BASF vs Duracell case shows how fragile this balance becomes when communication, documentation, and governance around trade secrets are insufficient.
Trade Secrets And Patents As Complementary Tools In Collaborations
In collaborations between technology companies, patents and trade secrets fulfil distinct yet complementary roles. Patents create an exclusionary right granted by an authority and published to the world. They define what each party brings as background IP and what may be licensed to the other side or to third parties. Patents also function as bargaining chips in cross-licensing deals, as anchors for joint ventures, and as a visible contribution to technology standards👉 An agreed specification ensuring compatibility and interoperability. and ecosystems. They help collaborators clarify who owns which part of the technical platform and enable a controlled, legally enforceable form of openness.
Trade secrets, on the other hand, protect valuable confidential information that is not publicly disclosed and often cannot be patented or is not strategically suited for patenting. They cover sensitive process know-how, detailed parameter settings, supply chain configurations, financial information, and negative know-how about failed experiments. In collaborations, trade secrets allow partners to share critical knowledge on a need-to-know basis, especially in early, exploratory, and iterative stages before clear patentable inventions👉 A novel method, process or product that is original and useful. emerge. They support agile co-development while preserving the option to file patents later.
In the BASF vs Duracell scenario, patents define visible territory, while trade secrets form an invisible layer of know-how that makes the process stable, reproducible, and economically attractive. Effective collaboration requires a conscious decision which elements enter the patent system and which stay in the confidential layer. Without this deliberate split, parties may talk past each other in disputes: one side insisting that everything important was confidential, the other pointing to patents as proof that the technology is public.
IP Strategy As A Backbone For A Sustainable Battery Ecosystem
An IP strategy in the battery sector is not merely about blocking competitors. It is about enabling a long-term ecosystem where suppliers, OEMs, and service providers invest, co-develop, and take risks together. For BASF, protecting core process know-how as trade secrets while building a patent portfolio around key material compositions and applications allows it to act as a platform provider for multiple customers. For Duracell, patents can underpin its brand promise and product roadmap, while trade secrets in manufacturing help control costs and quality.
The eco-system👉 Interconnected digital entities collaborating to create value and innovate. becomes possible when parties can share enough information to integrate their technologies without exposing their deepest competitive levers. It becomes sustainable when confidential know-how is handled so systematically that partners trust the collaboration framework even if personnel changes or market conditions shift. It becomes profitable when each party can appropriate a fair share of the value created, either through premium pricing, licensing👉 Permission to use a right or asset granted by its owner. revenue, or cost advantages secured by protected know-how.
The BASF vs Duracell case highlights that an IP strategy must be reflected not only in patent filings but also in the way collaborations are negotiated, documented, and operationalized. If trade secret management is treated as an afterthought, even a sophisticated patent portfolio cannot stabilize the ecosystem.
Designing A Trade Secret Management Program For Collaborations
A robust trade secret management program for collaborations in high-tech industries should be structured as an end-to-end process. It starts with identification, continues with classification and controlled sharing, and ends with documentation and enforcement readiness. Crucially, it distributes responsibilities between the IP team, the R&D organization, and the negotiators handling collaborations.
Identification and classification mean systematically mapping the know-how that truly creates competitive advantage. Instead of treating all internal information as equally confidential, the company defines a focused set of trade secrets and records them in a trade secret register. This register indicates content, business relevance, owners, access rights, and links to patents or products.
Responsibilities Of The IP Team In Trade Secret Management
The IP team defines the policies, templates, and governance framework for trade secrecy. It sets criteria for what qualifies as a trade secret, manages the trade secret register, and ensures that confidentiality provisions in contracts match the internal classification. It also aligns trade secret protection with patent strategies, for example by identifying which process details remain secret even after related patents are filed.
In the context of collaborations, the IP team supports negotiations, reviews NDAs and joint development agreements, and ensures that terms for background IP, foreground IP, and confidential information are clearly defined. It is also responsible for setting up procedures for evidence preservation, such as version control for technical documentation and logs of who accessed what information and when. This creates the basis to prove active protection measures in potential litigation.
Responsibilities Of The R&D Team In Trade Secret Management
R&D teams are both creators and primary users of trade secrets. Their responsibility is to apply the policies defined by the IP function in day-to-day work. That includes labelling documents, design files, and process descriptions according to confidentiality levels, using secure digital tools and physical storage, and limiting sharing to authorized recipients.
In a collaboration like that between BASF and Duracell, R&D staff must know exactly which elements of a process may be shared with partners and which must remain internal. They should document experimental steps, parameter windows, and reasoning in a way that later enables the company to show what was created internally and what was co-created. R&D also plays a key role in spotting when partner requests go beyond agreed scopes, for example when a partner asks for details that would essentially transfer the heart of a trade secret.
Responsibilities Of Negotiators And Business Owners In Collaborations
Negotiators and business owners act as gatekeepers between external partners and internal know-how. Their role is to structure collaborations to support the IP strategy rather than undermine it. They must ensure that NDAs and collaboration agreements are in place before sensitive information is shared and that these contracts contain precise definitions of confidential information, permitted uses, and restrictions.
In addition, negotiators should conduct IP due diligence at the start of a collaboration, clarifying which technologies and patents each party already owns and how new results will be allocated. During the collaboration, they need to monitor scope creep, ensure that joint steering committees respect confidentiality rules, and initiate escalation if misalignment emerges. In a case like BASF vs Duracell, weak governance by negotiators can later weaken the company’s legal position, because courts will ask whether the company took reasonable steps to protect its trade secrets.
Processes That Matter Most For Trade Secret Litigation
In trade secret litigation, success depends less on the abstract importance of the know-how and more on whether a company can prove that it treated the information as a trade secret. Several internal processes are therefore central. First, the identification and registration process: the company must show that it had a structured way to classify information as confidential and that the disputed know-how was clearly included. Second, access control processes: there must be documented restrictions on who could access the information, ideally based on role, project, and need-to-know principles. Third, documentation and evidence preservation processes matter. Version control for technical files, logs of file access, and records of who attended which meetings with partners form the backbone of a litigation strategy. Fourth, contractual processes are crucial: NDAs, joint development agreements, license contracts, and supplier agreements must consistently define confidentiality obligations and remedies. Finally, offboarding processes for employees and project partners are vital to prevent know-how leakage when people move to competitors or spin out startups.
These processes create the narrative that a trade secret was not just an idea in someone’s head but a deliberately protected asset. Without them, it becomes easy for a defendant to argue that the information was either already public, trivially discoverable, or not actually treated as secret within the company.
Minimal Training Non-IP Experts Need To Protect Trade Secrets
Most trade secret leaks do not come from malicious insiders but from employees who do not fully understand that they are handling sensitive information. Minimal training for non-IP experts should therefore focus on awareness, simple rules, and concrete examples. Every employee involved in collaborations should know what a trade secret is, why negative know-how and process details are often more valuable than published patents, and how easily such information can be lost through casual conversation, presentation slides, or unsecured cloud tools.
Training should teach practical behaviours: use only approved channels for sending technical information, check whether a document is labelled confidential before sharing it externally, avoid disclosing detailed parameter windows, recipes, or internal benchmarks in public talks, and consult the IP team if in doubt. Staff should understand that partners in collaborations can also be future litigants and that careful handling of information protects not only the company but also their own project results from being appropriated without recognition.
How IP Strategy Enables A Profitable And Sustainable Battery Ecosystem
A well-structured IP strategy combines patents and trade secrets into a coherent system that enables collaboration without eroding competitive advantage. In the battery ecosystem, patents help establish interoperable standards and create a transparent basis for licensing among materials suppliers, cell producers, and OEMs. This transparency encourages investment because partners know that they can secure access to critical technologies on clear terms.
Trade secrets complement this transparency by safeguarding the fine-grained know-how that underpins profitability: process yields, specific temperature and pressure regimes, quality control algorithms, and commercial strategies. When companies systematically manage these secrets, they can engage in collaborations like that between BASF and Duracell while maintaining unique margins or performance advantages. The ecosystem becomes sustainable because parties can specialize, share risks, and rely on legal and organizational structures that protect their contributions.
The BASF vs Duracell case warns that if trade secret strategy is weak, even a patent-rich ecosystem can be destabilized by accusations of misappropriation. Litigation then consumes resources that could have been invested into further innovation and industrial scaling of e-mobility solutions.
Key Lessons For IP Managers From The BASF vs Duracell Case
Several lessons emerge from this case. First, collaborations in high-tech fields should always be set up under the assumption that partners may later stand on opposite sides in court. That does not mean adopting a hostile stance; instead it means building robust documentation, clear contracts, and disciplined information handling from day one. Second, patents and trade secrets must be coordinated, not treated as separate worlds. Decisions about what to patent and what to keep secret should be conscious, documented, and aligned with long-term ecosystem goals. Third, trade secret management is not a purely legal function. IP, R&D, and business negotiators must work together in a structured program, with defined roles and processes that stand up under litigation scrutiny. Finally, non-IP experts must be equipped with basic training so they can act as guardians rather than accidental sources of leakage. Taken together, these lessons show that trade secrets are not just about hiding information but about constructing a resilient innovation ecosystem👉 Network fostering innovation by collaboration and resource sharing. in which companies like BASF and Duracell can cooperate, compete, and still protect their most valuable assets.
