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Enerpoly
Zinc-ion battery developer for stationary energy storage (in bankruptcy)
About Enerpoly
Enerpoly was a Stockholm-based company that developed rechargeable zinc-ion batteries for stationary energy storage, using zinc and manganese with a water-based electrolyte aimed at safer, lower-cost grid and commercial storage than lithium-ion. Founded in 2018 as Enerpoly AB (org. no. 559181-4388), it built cells and packs and scaled a customer qualification plant near Rosersberg with EU and Swedish support. In June 2025 the company entered bankruptcy after failing to secure further financing; manufacturing assets and patents were later acquired by Japan’s MKPLUS, which retained former staff for its own battery plans.
Source: Dealroom company dataAt a glance
- Founded
- 2018
- Headquarters
- Sigtuna kommun, Sweden
- Sector
- Transportation
News
More headlines
Investors
From Dealroom's funding and investor records, grouped by the round each investor first entered.
Seed6 investors entered at this stage
Vinnova
European Innovation Council
Swedish Energy Agency
Sting
Fredrik Sidhagen
Johan Nord
Source: Dealroom Talent Intelligence.
Global footprint
team presence
Market sentiment
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Source: X recent search ranked by engagement (likes + retweets) · Synthesis by Claude · Cached for 1 hour
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