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Fast energy storage via intercalation requires quick ionic diffusion and often results in pseudocapacitive behavior. The cycling stability of such energy storage materials remains understudied despite the relevance to lifetime cost. Orthorhombic niobium oxide (T‐Nb2O5) is a rapid ion intercalation material with a theoretical capacity of 201.7 mAh g−1 (Li2Nb2O5) and good cycling stability due to the...
Highly Reversible Lithiation
Batteries that last for millions of charge cycles could drive humanity thousands of times around the earth and on into the future. Towards this end, in article number 2312839, Morgan Stefik, Sean Cade Wechsler, and Alexander Greg elucidate the conditions under which T‐Nb2O5 maintains ∼90% capacity after 0.25 million (de)lithiation cycles. Enhanced durability directly improves...
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