Battery Boom or Battery Bust: Where Is Energy Storage Capital Actually Moving?

By Crystal Jain, Shagun Maheshwari and Nicolo’ Campagnol

Over the past five years in the West, batteries went from unstoppable to uncertain. EV adoption and AI-driven electrification are accelerating demand, yet investments in next-gen chemistries and Li-ion manufacturing have fallen sharply (Figure 1). Capital is more selective. Lead times are long. And China’s ascent to scale looks unmatchable.

Figure 1: Capital invested in battery-related companies from 2020-2025 (all in bUSD). Source: Pitchbook

So what is actually fundable heading into 2026?

To answer that question, we analyzed the evolution of the battery sector and interviewed seven investors across North America and Europe to understand where money is still moving, and what founders must prove to earn it.

Where We Are Now: The Move from Battery 2.0 to Battery 3.0 

We are now entering a new phase. Across every interview, the same message emerged: Novelty is no longer the moat. A combination of manufacturability and product-market fit is.

Where Capital is Actually Moving 


We interviewed battery-native funds (TDK Ventures, Volta Energy Technologies), deep-tech specialists (360 Capital , Anzu Partners) and generalist industrial capital (Societe Generale Corporate and Investment Banking – SGCIB, Algebris Investments) and a tier-one US venture firm focused on manufacturing and energy systems) (Figure 2). 

Figure 2: Overview of the interviewed investors by geography (EU and North America), battery focus, and investment stage preference, going from Incubator (1) to Infrastructure (10)
Battery-Native & Climate Funds: From Breakthroughs to Factory Economics


Battery-focused investors are prioritizing technologies that remove cost from production: dry electrode and solvent-less processes, yield improvement through in-line quality assurance, and non-automotive entry points such as sodium-ion for stationary storage. 

This is also where some see a real opportunity for U.S. leadership. Their guidance: Don’t build the next gigafactory. Build what the next gigafactory will run on.

“Dry electrode coating and electrodeposition are places the U.S. still has a chance to lead. There is no dominant Chinese equivalent today.”
Qianran (Katherine) He
TDK Ventures
Deep-Tech Funds: Industrial Credibility is Mandatory  


Battery investment remains a subset of a broader deep-tech strategy, but the filters have tightened. Fundable companies demonstrate amp-hour scale validation, not just coin cell performance, and credible strategies to integrate with existing supply chains and equipment without a total overhaul of the current industrial ecosystem.

Generalists and Corporate Capital: Energy as a National Security  


Generalist and corporate investors are applying a national security lens to the sector, specifically targeting space, defense, and energy while strictly avoiding the cell manufacturing “trap”.

Capital is moving upstream towards lithium mining and processing, where margins often remain in the 30-50% range, and downstream towards data centers as high-margin beachheads with immediate power needs. 

Operational leverage is now mandatory: companies must show that software or network effects allow revenue to scale faster than cost. 

Policy volatility reinforces this discipline.  As one investor put it, “subsidies are support, not strategy.” Across both the U.S. and Europe, investors emphasized that energy, particularly to power AI, is increasingly viewed as national defense rather than a pure decarbonization effort.

Market Takeaways


1. Ride the buildout, don’t be the buildout. Evaluate where venture capital actually fits. 

Battery manufacturing in the West is essential, but it’s structurally misaligned with venture capital. Cell factories are capital-intensive, slow to scale, low margin, and dependent on long-dated financing that don’t generate returns in traditional VC timelines. Increasingly, they resemble the semiconductor fab model, which was enabled by public-private partnerships, government incentives, loan guarantees, and industrial policy. 

In other words, the buildout will happen. It just won’t be solely VC-underwritten. For venture investors, the opportunity lies in the layers that make the buildout performant and financeable. Power electronics and software that sit adjacent to the battery, as opposed to sitting inside the cell, are much closer to a familiar software/services profile for many VCs: 

These businesses scale differently than cell manufacturing because they require less capital, iterate faster, and can be chemistry-agnostic. 

2. Start where speed meets margin

Don’t just start where willingness to pay is high – start in a beachhead where you can commercialize before your edge commoditizes. 

In the US, this looks like defense, drones, extreme-temperature operations, and data centers. In Europe, it’s long duration storage, specialty components, and circularity. 

However if your first customer segment is “EV/ESS at scale,” several investors put it bluntly: you’re probably going to die. 

3. Frontier tech still matters – with proof 

Next-generation chemistries and AI-accelerated materials remain fundable if amp-hour scale exists (not just coin cells!), a non-commodity entry market is chosen, and there’s a credible route to production. 

The contraction in Figure 1 from $24B in 2022 to $10B in 2025 signals the end of the EV hype cycle. With the termination of U.S. federal EV tax credits in July 2025’s OBBBA legislation, Battery 3.0 companies are pivoting towards three high-margin lifelines: 

  • Defense & Drones: The Pentagon’s “Drone Dominance Program” targets 300,000 drones by 2028, creating a demand for 30 million specialized cells. This has become a primary volume play for companies like Amprius Technologies, Inc. and SES AI.

  • AI Data Centers: Massive power requirements have made data centers a high-priority sector for early-stage capital (Figure 3, Figure 4). Companies like SES AI are leveraging this shift by integrating AI-driven material discovery with a new focus on stationary energy storage.

Figure 3: End-market attractiveness varies by geography and stage
  • Geopolitics & Localization: A 2028 ban on Chinese battery components in the Pentagon’s supply chain is creating a “walled garden” for domestic players. To stay compliant, manufacturers are migrating capacity to U.S.-aligned regions like South Korea.

This market crystallization is unforgiving. While domestic LFP initiatives like Mitra Chem attract hundreds of millions in investment, others are falling into the “Battery Grave”. 

Ultimately, Battery 3.0 is no longer about maximizing total capacity, but about delivering the highest value per kilowatt-hour. 

Figure 4: Survey results show broad enthusiasm for AI-enabled grid and mobility applications in comparison to next-gen technologies

How Founders Win in Battery 3.0


Investors are no longer funding scientific novelty or total addressable market (TAM) slide decks. They’re funding companies that are market-driven and policy-resistant. 

1. Start with a fundable beachhead 

EV and grid-scale storage are the wrong first customers. OEMs demand ultra-low cost, supply-chain maturity, and bankability instead of indexing on novelty.. 

Early markets that still pay for performance: 

  • US: Defense, drones, rail, mining, data centers, power-grid 

  • Europe: Long duration storage and speciality components 

2. Build for scalability 

Investors want hardware that works inside the existing ecosystem: 

  • Amp-hour cells 

  • Real-world cycling 

  • Integration with existing equipment 

3. Localization is a major advantage 

Great technology often fails when it is built in a vacuum with a lack of domestic suppliers, no nearby customers, or local manufacturing partners. However, when a company builds in specific markets, like domestic military projects, grid security, or data centers uptime, investors are much more confident when localization is factored in.

“Even innovative players can be risky if the final customers aren’t local. The missing ecosystem is the real problem.”
Alessandro Zaccaria
360 Capital

Localization is no longer a “nice to have”, it is a core component a part of a product’s defensibility.

4. Execution outweighs originality 

Investors aren’t screening for the “best idea.” They’re screening for teams who can survive manufacturing reality. This often includes teams that have:

  • Shipped hardware before 

  • Hired and retained technical teams 

  • Navigated certifications and QA standards 

  • Managed cash burn against ramp plans

“A lot of great ideas have gone to the grave because of execution.”
Josh Stiling
Anzu Partners

5. Focus on proof over potential 

The reality is that LOIs used to open doors, but today they hold significantly less weight.

“Customer pull is necessary, but not sufficient. You need to show you can scale what you’re selling.”
James Frith
Volta Energy Technologies

Evidence investors now expect: 

  • Paid pilots 

  • Operational deployments 

  • Manufacturability roadmaps tied to real suppliers 

And while federal subsidies can help, dependence on them kills conviction:

“Investors are wary of subsidized stories. We want to make sure the company will fly even without them.”
Mathieu Zeisser
Societe Generale Corporate and Investment Banking - SGCIB

The battery industry is maturing, and for founders who can build within these stricter rules, this shift creates a major opportunity to succeed in Battery 3.0.

Call to Action for Founders

If you’re a founder building in energy storage, this is your moment. 

At Volta Foundation, our mission is to help those founders get seen, get connected, and get funded. Some ways you can get engaged with the community:  

1. Get discovered by investors and customers with the Battery Business Directory. 

Add your startup to the Battery Business Directory to be searchable by thousands of battery professionals globally. 

2. Apply to Volta’s Startup Program 

This is our latest initiative which connects founders directly to top OEMs and integrators, manufacturing partners, industry mentors, and a growing network of 75,000+ battery professionals. If you’re solving a real problem in this space, we want to help accelerate you. Apply here!

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