Current‐Adaptive Li‐Ion Storage Mechanism in High‐Rate Conversion‐Alloying Metal Chalcogenides
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DOI: 10.1002/adfm.202407246
Abstract: Beyond the high theoretical capacity, conversion‐alloying metal chalcogenides (CAMCs) exhibit exceptional high‐rate performance as Li‐ion battery electrodes. However, the inherent origin of the high‐rate performance remains elusive, especially given the lower intrinsic conductivity of CAMCs.… read more here.
Keywords: rate; conversion alloying; alloying metal; high rate ... See more keywords
Hexaindium Heptasulfide/Nitrogen and Sulfur Co‐Doped Carbon Hollow Microspindles with Ultrahigh‐Rate Sodium Storage through Stable Conversion and Alloying Reactions
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DOI: 10.1002/adma.202211611
Abstract: Group IIIA–VA metal sulfides (GMSs) have attracted increasing attention because of their unique Na‐storage mechanisms through combined conversion and alloying reactions, thus delivering large theoretical capacities and low working potentials. However, Na+ diffusion within GMSs… read more here.
Keywords: carbon; alloying reactions; rate; nitrogen sulfur ... See more keywords
Phase Evolution of Multi‐Metal Dichalcogenides With Conversion‐Alloying Hybrid Mechanism for Superior Lithium Storage
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DOI: 10.1002/adma.202311926
Abstract: Traditional lithium‐ion battery (LIB) anodes, whether intercalation‐type like graphite or alloying‐type like silicon, employing a single lithium storage mechanism, are often limited by modest capacity or substantial volume changes. Here, the kesterite multi‐metal dichalcogenide (CZTSSe)… read more here.
Keywords: lithium; lithium storage; conversion alloying; mechanism ... See more keywords
Bimetallic Sulfide Hollow Nanocubes Heterostructure Promotes Dual Coupling of Conversion and Alloying/Dealloying Reactions to Achieve Durable Potassium-Ion Battery Anode.
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DOI: 10.1002/smll.202404194
Abstract: Conversion and alloying-type transitional metal sulfides have attracted significant interests as anodes for Potassium-ion batteries (PIBs) and Sodium-ion batteries (SIBs) due to their high theoretical capacities and low cost. However, the poor conductivity, structural pulverization,… read more here.
Keywords: conversion alloying; potassium; bimetallic sulfide; heterostructure ... See more keywords