Paul Scherrer Institute Develops New Production Process for All-Solid-State Batteries
Researchers at the Paul Scherrer Institute have developed a new production process for lithium metal all-solid-state batteries, improving energy storage, safety, and charging speed over traditional lithium-ion batteries. The innovative method addresses key challenges like lithium dendrite formation and electrochemical instability, achieving a stable interface with a lithium fluoride coating and maintaining 75% capacity after 1,500 cycles. This advancement promises ecological and economic benefits for the industrial production of these batteries.
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Researchers at the Paul Scherrer Institute (PSI) have developed a new production process for lithium metal all-solid-state batteries, enhancing energy storage, safety, and charging speed compared to conventional lithium-ion batteries. The study, published in Advanced Science, addresses two major challenges: the formation of lithium dendrites and electrochemical instability at the lithium metal anode interface.
The team, led by Mario El Kazzi, utilized an argyrodite type LPSCl solid electrolyte and implemented a gentle sintering method at about 80 degrees Celsius to create a dense microstructure. A lithium fluoride coating was applied to the anode to stabilize the interface.
Laboratory tests showed the battery maintained approximately 75% capacity after 1,500 cycles, indicating potential for surpassing conventional batteries in energy density and durability. This process offers ecological and economic benefits for industrial production of these batteries.
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