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Ion Storage Systems

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Energy dense and safest battery that can be deployed in almost any environment

Beltsville, United StatesFounded 2015Defence
Valuation $5–10M Last recorded · 2026
Headcount <100 Current team size
Total funding $50–100M Disclosed equity funding
Unlock exact values This page shows ranges. Dealroom has the exact numbers for Ion Storage Systems and the history behind them.

About Ion Storage Systems

Ion Storage Systems is a startup that specializes in the production of advanced solid-state lithium metal batteries. The company operates in the energy storage market, serving clients that require high-performance, safe, and sustainable power solutions. Their patented technology involves a nonflammable ceramic structure that resembles a sponge, which sits on top of a thin dense separator. This unique design allows for maximum energy density and compatibility with multiple cathode technologies.

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The company's business model revolves around the production and sale of these innovative batteries. They make money by selling their products to businesses in various sectors that require reliable and efficient energy storage solutions. Their batteries are designed to be safe, requiring no fire barriers or swelling allowance, and are also sustainable, being reusable and recyclable at the end of their life.

Ion Storage Systems prides itself on its team of seasoned battery industry experts who are passionate about power. They have reimagined the way batteries are made, merging two technologies to create a battery that is safer, stronger, lighter, and more rugged. All of this is done from their 20,000 square foot facility in Maryland, USA.

Source: Dealroom company data

At a glance

Founded
2015
Headquarters
Beltsville, United States
Sector
Defence

Investors

8 investors on the cap table

From Dealroom's funding and investor records, grouped by the round each investor first entered.

Seed2 investors entered at this stage

  • US Department of Energy
  • State of Maryland

Series A4 investors entered at this stage

  • Alsop Louie Partners
  • VoLo Earth Ventures
  • Clear Creek Investments
  • TEDCO

Series B and later2 investors entered at this stage

  • NOVA by Saint-Gobain
  • LEONID
Team profiled 4 named & role-tagged
Founders Hidden — book a demo/100 quality score
Key operators 2 quality Hidden — book a demo/100
Potential founders Hidden — book a demo likely future founders
Startup mafia Hidden — book a demo alumni-founded startups
Talent movements Hidden — book a demo in · Hidden — book a demo out past 12 months

Source: Dealroom Talent Intelligence.

Global footprint

Workforce and web traffic by country
Workforce by country
2 countries with
team presence
🇺🇸 United States97.7%
🇨🇦 Canada2.3%
2 countries shown

Market sentiment

Posts on X, past 7 days

An AI-synthesised read of the highest-engagement posts about Ion Storage Systems on X, ranked by likes and reposts, corporate channels excluded.

Reading the room on X — pulling top posts and synthesizing themes…

Source: X recent search ranked by engagement (likes + retweets) · Synthesis by Claude · Cached for 1 hour

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