A New Hierarchical α-MnO₂-Nanotube@SnO₂ Heterostructure as an Advanced Anode for High-Performance Lithium-Ion Batteries

Manganese dioxide coated with tin oxide as cathode material for high-performance aqueous zinc-ion battery.

“…All positive electrodes show a similar voltammetric cycle curve, where the first three cycles of 0.1MS, 0.2MS, 0.3MS and 0.4MS electrodes are shown in figure 25(b-e) respectively. Peak and shape are identical to that of pristine MnO 2 as shown in figure 25(a), indicating that the SnO 2 coating does not change the redox reaction of the pristine electrode [26,[28][29]. By the reduction process of the pristine MnO 2 electrode, there were two peaks of 1.28 V and 1.38 V. There are two oxidation apparent peaks set at 1.53 V and 1.61 V, proving a two-stage reaction during the discharge/charge process for the pristine MnO 2 electrode, while the 0.1MS and 0.4MS positive electrode reduction process has two reduction peaks of 1.27 V, 1.36 V and 1.27 V, 1.37 V, respectively.…”

A Low-Cost and High-Capacity SiOx/C@graphite Hybrid as an Advanced Anode for High-Power Lithium-Ion Batteries

“…With high energy density, power density, and operating voltage, as well as their long cycle life, low rates of self-discharge, and low environmental pollution, as being an effective energy storage device, lithium-ion batteries (LIBs) have been widely applied in various fields. − With the mass production of electric vehicles and the iterative update of portable electronic devices, there is a higher demand for the capacity and endurance of LIBs. − However, the graphite, as the mainstream anode material currently used in the commercialization of LIBs, is close to its theoretical capacity (372 mAh g –1 ) and cannot meet the application requirements of high-performance batteries. ,− Therefore, the development of emerging anode materials with high specific capacity has become an irresistible trend …”

Porous Multicomponent Mn–Sn–Co Oxide Microspheres as Anodes for High-Performance Lithium-Ion Batteries

“…18,19 However, the disadvantage of its low capacity density limits its wide application in high-performance LIBs. 20,21 Therefore, the search for a new generation of electrode materials with higher energy density and excellent cycle stability has become a top priority. 22,23 Among the numerous electrode materials for anodes, metal oxides are expected to be a promising anode material for replacing graphite because of their high theoretical capacity and good electrochemical properties.…”

“…Recently, with the increasing attention on clean energy and more demand for high energy density of various portable devices and electric vehicles, green energy storage and conversion devices, such as lithium-ion batteries (LIBs), − fuel cells, − and supercapacitors, − have been widely studied and applied. Among them, LIBs have been attracting researchers’ interests because of their high capacity and long cycle life. − In current commercial LIBs, graphite has been used as a classic anode material because of its excellent cycle performance and low charging/discharging potential. , However, the disadvantage of its low capacity density limits its wide application in high-performance LIBs. , Therefore, the search for a new generation of electrode materials with higher energy density and excellent cycle stability has become a top priority. , Among the numerous electrode materials for anodes, metal oxides are expected to be a promising anode material for replacing graphite because of their high theoretical capacity and good electrochemical properties. − In particular, binary metal oxides including cobalt or manganese have been constantly studied as anodes for next-generation LIBs because of their high theoretical capacity, low cost, low discharge plateau (0.3–0.6 V), and synergistic effects. − Yang’s group reported CoMn 2 O 4 nanofibers via an electrospinning method combined with heat treatment, showing a reversible capacity of 526 mA h g –1 at 400 mA g –1 after 50 cycles . Mesoporous NiCo 2 O 4 microspheres synthesized by a facile solvothermal method with pyrolysis could deliver 1198 mA h g –1 after 30 cycles at 200 mA g –1 .…”