Recycling the Future of Batteries

The Company

Back to Battery is a Delft-based climate tech startup specializing in the sustainable recycling of end-of-life lithium-ion batteries. Their patent-pending hydrometallurgical process (zero waste, no sodium sulphate, high recovery) enables the extraction of critical battery materials such as lithium, nickel, and cobalt turning waste into high-purity, battery-grade inputs.

The Mission

To enable a truly circular European battery supply chain by recovering and reintroducing materials from spent batteries into new ones, reducing dependence on raw mining, strengthening local value chains, and advancing the energy transition.

Why We Invested

  • The demand for battery materials is projected to multiply dramatically (e.g., lithium ×14, nickel ×20) as EV adoption and renewable storage expand.
  • New EU regulations (such as the upcoming Battery Regulation and stricter recycling mandates) increase the need for high-efficiency local recycling solutions.
  • Back to Battery’s process achieves over 95% recovery of key materials and >99.5% purity, outperforming legacy technologies.
  • Their solution addresses three major challenges: environmental impact, supply chain security, and cost efficiency – all fully aligned with our impact investment goals.

Key Product & Technology Highlights

  • Closed-loop hydrometallurgy: Reuses water and reactants internally, avoids sodium sulphate waste, and produces no CO₂ or NOₓ emissions.

  • Multi-chemistry flexibility: Capable of processing multiple lithium-ion chemistries (LFP, LCO, NMC, NCA, LMO).

  • High-purity output: Delivers battery-grade materials (>99.5% purity), ready for direct reuse in new battery production.Roland Berger | 7

  • Scalable & cost-efficient: Designed for low CAPEX and OPEX, outperforming incumbent recycling systems

Team & Leadership

  • Closed-loop hydrometallurgy: Reuses water and reactants internally, avoids sodium sulphate waste, and produces no CO₂ or NOₓ emissions.

  • Multi-chemistry flexibility: Capable of processing multiple lithium-ion chemistries (LFP, LCO, NMC, NCA, LMO).

  • High-purity output: Delivers battery-grade materials (>99.5% purity), ready for direct reuse in new battery production.Roland Berger | 7

  • Scalable & cost-efficient: Designed for low CAPEX and OPEX, outperforming incumbent recycling systems

Investment Specifics

  • Stage: Pre-seed / early stage (proof-of-concept to pilot phase)
  • Focus: Clean tech, circular economy, and strategic raw materials recovery
  • Our Role: Active investor — co-developing partnerships, supporting commercial rollout, and enhancing operational excellence

Our Support

We are supporting Back to Battery’s next growth phase helping them scale from pilot to commercial operations, develop partnerships with OEMs and recyclers, and professionalize internal processes and documentation.

Our involvement goes beyond capital: we contribute strategic, operational, and network support to accelerate impact.

Impact & Outlook

With Back to Battery’s technology in operation, we expect:

  • Major reductions in environmental waste from spent batteries
  • Localized supply of battery-grade materials across Europe
  • Contribution toward EU Battery Regulation compliance and circular economy targets
  • Scalable potential for a network of European recycling facilities

SDG Alignment: SDG 12 — Responsible Consumption & Production

Get in Touch

For more information about Back to Battery’s products or partnership opportunities, visit www.back-to-battery.nl