Solidion Technology Reached Major Milestones in Lithium-Sulfur Battery

Rhea-AI Summary

Solidion Technology (NASDAQ: STI) has achieved a significant breakthrough in lithium-sulfur (Li-S) battery technology, reaching a cell energy density of 380 Wh/kg, with their next target set at 450 Wh/kg. This achievement was validated by a leading EV battery producer.

The company's Li-S batteries offer several advantages over traditional lithium-ion cells:

• Higher theoretical energy density (>600 Wh/kg vs current 260 Wh/kg)
• Uses abundant and low-cost sulfur as primary cathode material
• Excludes costly and less environmentally sustainable rare metals (cobalt, nickel, manganese)
• Projected battery cost under $65/kWh
• 100 kWh battery pack cost estimated at $6,500, comparable to combustion engines

Solidion is developing solutions to address Li-S commercialization challenges through graphene/elastomer-protected lithium metal anode, 3D graphene-protected sulfur cathode, and quasi-solid or solid-state electrolyte, protected by 100+ US patents.

Positive

• Achieved 380 Wh/kg cell energy density, significantly higher than current lithium-ion batteries (260 Wh/kg)
• Projected battery cost under $65/kWh, making EVs affordable without subsidies
• Uses abundant, low-cost sulfur instead of expensive rare metals
• Strong IP protection with 100+ US patents
• Third-party validation from leading EV battery producer

Negative

• Technology still faces commercialization challenges requiring additional development
• Current energy density (380 Wh/kg) still below theoretical maximum (>600 Wh/kg)
• Solutions still in development phase, not yet market-ready

The Company's High-Energy Lithium-Sulfur Batteries Validated by a Third Party

DALLAS, March 12, 2025 /PRNewswire/ -- Solidion Technology, Inc. (NASDAQ: STI), a global leader in ultrahigh energy density batteries, today announced that their lithium-sulfur (Li-S) batteries have reached a cell energy density of 380 Wh/kg. Solidion's immediate next target is 450 Wh/kg. This exciting result was recently confirmed by a leading EV battery producer.

Lithium-sulfur (Li-S) batteries possess a theoretical energy density much higher than 600 Wh/kg and is currently the only practical energy storage solution capable of doubling the energy density (260 Wh/kg) of current lithium-ion cells. Furthermore, the primary cathode material for a Li-S battery is sulfur, which is abundant and of low cost. The Li-S battery does not contain high-cost and environmentally less sustainable rare metal elements, such as cobalt, nickel, and manganese.

A combination of extremely low sulfur cost and exceptional energy density ensures that a battery cost less than $65/kWh is now well within reach. The EV battery cost of $6,500 for a 100 kWh battery pack (providing a driving range of 500 miles) will soon be comparable to the cost of a combustion engine, making electric vehicles truly affordable even without a government subsidy.

Solidion continues to develop effective solutions capable of resolving the major technical issues that have thus far impeded full commercialization of Li-S barriers; these solutions include graphene/elastomer-protected lithium metal anode, 3D graphene-protected sulfur cathode, and quasi-solid or solid-state electrolyte. These solutions are protected by a superior IP portfolio, including 100+ US patents and numerous international patents.

For more information, please visit www.solidiontech.com or contact Investor Relations.

About Solidion Technology, Inc.

Headquartered in Dallas, Texas with pilot production facilities in Dayton, Ohio, Solidion's (NASDAQ: STI) core business includes manufacturing of battery materials and components, as well as development and production of next-generation batteries for energy storage systems and electric vehicles for ground, air, and sea transportation. Solidion holds a portfolio of over 550 patents, covering innovations such as high-capacity, non-silane gas and graphene-enabled silicon anodes, biomass-based graphite, advanced lithium-sulfur and lithium-metal technologies.

Cautionary Note Regarding Forward-Looking Statements:

This press release contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. Solidion Technology Inc., (NASDAQ: STI) (the "Company," "Solidion," "we," "our" or "us") desires to take advantage of the safe harbor provisions of the Private Securities Litigation Reform Act of 1995 and is including this cautionary statement in connection with this safe harbor legislation. The words "forecasts" "believe," "may," "estimate," "continue," "anticipate," "intend," "should," "plan," "could," "target," "potential," "is likely," "expect" and similar expressions, as they relate to us, are intended to identify forward-looking statements. We undertake no obligation to publicly update any forward-looking statements, whether as a result of new information, future developments or otherwise, except as may be required by law.

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SOURCE Solidion Technology, Inc.

FAQ

What energy density has Solidion Technology (STI) achieved in their lithium-sulfur batteries?

Solidion Technology has achieved a cell energy density of 380 Wh/kg in their lithium-sulfur batteries, validated by a leading EV battery producer.

How much could STI's lithium-sulfur batteries reduce EV battery costs?

STI projects battery costs under $65/kWh, with a 100 kWh battery pack costing around $6,500, making EVs comparable in cost to combustion engines.

What advantages do STI's lithium-sulfur batteries have over traditional lithium-ion batteries?

STI's Li-S batteries offer higher energy density (380 Wh/kg vs 260 Wh/kg), use cheaper materials (sulfur vs rare metals), and eliminate the need for costly metals like cobalt and nickel.

How is Solidion Technology (STI) protecting their lithium-sulfur battery technology?

STI has secured over 100 US patents and numerous international patents covering their Li-S battery solutions.

What technical solutions is STI developing for lithium-sulfur battery commercialization?

STI is developing graphene/elastomer-protected lithium metal anode, 3D graphene-protected sulfur cathode, and quasi-solid or solid-state electrolyte solutions.