Battery electrolyte firm South 8 Technologies raises US$12m to fund commercialisation

LinkedIn
Twitter
Reddit
Facebook
Email

Lithium electrolyte provider South 8 Technologies has raised US$12 million in Series A financing to commercialise its liquefied gas electrolyte technology.

South 8 claims its electrolytes offer a unique approach to address shortcomings in more prevalent electrolytes on the market today. The technology uses solvents that are normally gaseous at room temperature and under standard pressures but can be liquefied to be used as an electrolyte.

This, South 8 says, poses benefits for batteries, including increased safety through a reduced risk of thermal runaway, an enhanced degree of material compatibility among cell components and cheaper costs.

Cyrus Rustomji, CEO at South 8 Technologies, said the company’s approach offered a “more practical alternative technology to stakeholders”, commenting that existing battery technology companies were currently “placing big bets on a relatively narrow set of potential breakthrough innovations”.

This article requires Premium SubscriptionBasic (FREE) Subscription

Try Premium for just $1

  • Full premium access for the first month at only $1
  • Converts to an annual rate after 30 days unless cancelled
  • Cancel anytime during the trial period

Premium Benefits

  • Expert industry analysis and interviews
  • Digital access to PV Tech Power journal
  • Exclusive event discounts

Or get the full Premium subscription right away

Or continue reading this article for free

Companies participating in the funding round included LG Technology Ventures and Shell Ventures, investment vehicles operated by tech company LG and oil and gas major Shell respectively, as well as technology venture fund Foothill Ventures and Japanese industrial gas company Taiyo Nippon Sanso Corporation.

Shell’s new investment in South 8 follows a “strategic investment” of an undisclosed amount the company made in August 2020. Other energy storage firms to have received backing from Shell Ventures include platform provider AutoGrid and thermal storage start-up Antora Energy.

Robert McIntyre, managing director at LG Technology Ventures, added: “South 8’s technology can power new market applications by solving traditional challenges around safety, manufacturability and more that has limited battery technologies for decades.”

South 8 is a spin out of the University of California San Diego, launched in 2016 after its founding team developed its patented technology at the university. It is founded by Cyrus Rustomji, who now serves as the company’s chief executive officer, and current chief technology officer Jungwoo Lee.

Read Next

October 1, 2026
Battery energy storage systems (BESS) are increasingly being positioned as essential infrastructure investments rather than purely financial assets, as seen in a series of strategic partnerships announced in late September that integrate storage with broader energy and digital infrastructure strategies.
October 1, 2026
Energy-Storage.news spoke with Noemí Gallardo, Commissioner at the California Energy Commission (CEC), at the US Solar & Storage Finance event in Garden Grove, California, about the growth of BESS within the state.
October 1, 2026
Orix Corporation has begun construction of its first battery storage projects to be supported by external investment.
September 30, 2026
Three US utilities, Ameren Missouri, DTE Energy in Michigan, and Black Hills Energy in Colorado have recently submitted IRPs with highlighted BESS project additions.
September 30, 2026
IPP Northland Power has announced that its 80MW/160MWh Jurassic energy storage project in Cypress County, Alberta, CA, has achieved commercial operations.