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News Link • Science, Medicine and Technology

New research shows highest energy density all-solid-state batteries now possible

• https://www.eurekalert.org, Tohoku University

The researchers say the new material, achieved by designing structures of hydrogen clusters (complex anions), shows markedly high stability against lithium metal, which would make it the ultimate anode material for all-solid-state batteries.

All-solid-state batteries incorporating a lithium metal anode have the potential to address the energy density issues of conventional lithium-ion batteries. But until now, their use in practical cells has been limited by the high lithium ion transfer resistance, caused mainly by the instability of the solid electrolyte against lithium metal.

This new solid electrolyte that exhibit high ionic conductivity and high stability against lithium metal can therefore be a real breakthrough for all-solid-state batteries that use a lithium metal anode.

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