Copper hydroxyphosphate Cu2(OH)PO4 as conversion-type anode material for lithium-ion batteries

Heterostructured Mn–Sn Bimetallic Sulfide Nanocubes Confined in N, S-co-Doped Carbon Framework as High-Performance Anodes for Sodium-Ion Batteries

“…The Nyquist plots of the MSS@NSC and MSS in Figure a possess similar shapes that consist of high-frequency semicircles and low-frequency diagonals, corresponding to charge-transfer resistance ( R ct ) on electrode/electrolyte interfaces and Warburg impedance ( Z w ) for ion diffusion in the internal electrode materials, respectively. , Moreover, the solution resistance ( R s ) denotes the inner resistance of the Na-ion cells, and the constant phase element (CPE) means the double-layer capacitance reactance . Notably, the MSS@NSC anode favors lower R s and R ct values than the MSS anode (Table S1), which was ascribed to the improved electrical conductivity by the NSC.…”

Facile construction of flower-like MoO2/MoS2 heterostructures encapsulated in nitrogen-doped carbon for high-performance sodium-ion storage

“…9–11 Recently, lithium-ion batteries (LIBs) have been dominating the emerging markets of electric vehicles, smart devices, and portable electronics, which mainly benefit from their impressive advantages, including high power and energy densities as well as satisfactory lifespans. 12–15 However, lithium resources suffer from finite terrestrial reserves and uneven geographical distributions, which pose significant challenges to their large-scale applications in the future. 16,17 In the last decade, sodium-ion batteries (SIBs) have gained considerable interest owing to their similarities to LIBs in terms of reaction mechanisms as well as their benefits such as ample supply, widespread availability, and low cost.…”

Engineering hierarchical manganese molybdenum sulfide nanosheet integrated cathodes for high-energy density hybrid supercapacitors

“…11 Besides, the unavoidable intrinsic defects of RBs also need to be remedied, such as low power density output, inferior rate performance, short lifetimes, and serious performance decay at low temperatures. 12–14 Supercapacitors (SCs) have attracted wide research interest benefiting from their attractive virtues, including high power density, wide temperature operation window, fast charge–discharge speed, and long cycling stability. 15–17 As a crucial role, the electrochemical properties of electrode materials commonly determine the entire charge storage performance of SCs.…”