Sodium-ion, solid-state batteries still risky: Alsym Energy CEO

An employee tests Alsym Energy's battery at its prototyping line in Woburn, Mass. in this undated file photo. Courtesy of Alsym Energy

Alsym Green’s materials are inherently non-flammable and non-toxic, and made using readily available materials with robust, uncomplicated supply chains,” he said.

“It is the only non-flammable stationary storage option that is truly suitable for urban areas, and is also an attractive option for warmer equatorial regions.”

His remarks came after a deadly lithium battery plant fire here last month raised global concerns about the safety of batteries containing lithium.

Although single-use lithium batteries caused the fire at Aricell’s lithium battery plant in Hwaseong, Gyeonggi Province, fears are lingering among consumers over the safety of rechargeable lithium-ion batteries used for electric vehicles (EVs), mobile phones, laptops and energy storage systems (ESS).

After a local fire department suggested that the factory’s 23 workers died primarily from the inhalation of toxic smoke from the burning materials, rather than direct burn injuries, the toxicity of minerals used in lithium-ion batteries is also drawing attention.

“Lithium-ion batteries provide high energy density in small footprints, but concerns about fires and explosions in stationary storage applications have the potential to slow the clean energy transition,” the Alsym Energy CEO said.

“Toxicity is a concern, with lithium-ion capable of producing deadly hydrogen fluoride and carbon monoxide gases.”

In response to growing worries, global battery firms have tried to develop alternative products.

EcoPro recently developed cathode materials for lithium-free sodium-ion batteries. LG, Samsung and SK are ramping up efforts for the mass 스포츠 production of all-solid-state batteries using solid-state electrolytes that can reduce the risks of fire and explosion.

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