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China's University of Science and Technology Pioneers a New Chloride Cathode Material for Solid - State Sodium Batteries
4 day ago /
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Author：小编
In the realm of electrochemical energy storage, all - solid - state sodium batteries that employ inorganic solid electrolytes and 3.5V - class cathodes are of immense significance. These batteries boast high safety, high specific energy, and cost - effectiveness. Nevertheless, the widely adopted layered oxide cathodes, exemplified by NaNi1/3Fe1/3Mn1/3O2, are characterized by high rigidity. During the battery's cycling process, this rigidity gives rise to significant lattice strain. Such strain is prone to causing internal cracking within the active particles. Moreover, it can lead to contact failure between the cathode and the electrolyte, ultimately resulting in irreversible capacity loss.
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