Peak Energy raises $108M for sodium-ion battery storage

· Energy · United States

US sodium-ion battery storage company Peak Energy has closed a $108 million Series B round led by General Motors' venture arm, GM Ventures. The money will accelerate manufacturing and deployment of its sodium-ion energy storage systems as the company prepares to start production at a 4 GWh factory in California and launch its systems into the data center market. Peak Energy is also working with GM on next-generation sodium-ion battery cells aimed at grid-scale energy storage rather than electric vehicles. Sodium-ion chemistry avoids lithium, an input whose price and supply have been volatile, making it attractive for stationary storage where energy density matters less than cost and durability.

Why it matters：The round signals that automakers and investors see sodium-ion as a serious alternative to lithium for grid storage, a segment whose growth depends on cheap, supply-secure chemistries.

Key points

  • Series B was led by GM Ventures, with the company preparing a 4 GWh California factory.
  • Peak Energy is targeting data centers as an early market for its sodium-ion systems.
  • GM is separately partnering with Peak on sodium-ion cells for grid-scale storage, not EVs.

Sources (original reporting)

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