Binder-free flexible zinc-ion batteries: one-step potentiostatic electrodeposition strategy derived Ce doped-MnO2 cathode

Emerging two-dimensional nanostructured manganese-based materials for electrochemical energy storage: recent advances, mechanisms, challenges, and prospects

“…Through in situ Raman spectroscopy and other in situ characterization techniques, it is revealed that the storage mechanism of the Ce-doped MnO 2 cathode is the reversible intercalation/deintercalation of Zn 2+ and H + and demonstrated that the structural shedding and dissolution of the MnO 2 structure are the major factors in reducing capacity. 390 Ni-doping induced structural distortion of MnO 2 nanosheets for highly efficient Na + storage was reported by Yao's group. In situ Raman spectra acquired at different charge/discharge states are exhibited in Fig.…”

A cerium vanadate/S heterostructure for a long-life zinc-ion battery: efficient electron transfer by the anchored sulfur

“…5 The capacity contribution of an electrode usually consists of two parts, namely, the surface-induced pseudocapacity and the ion diffusion-controlled battery capacity. 32 The relationship between peak currents ( i ) and scan rates ( v ) at an established potential can be depicted as i = av b . The logarithmic function used to obtain a linear equation is: log( i ) = log a + b log( v ), where the value of b is in a range from 0.5 to 1.…”

Electrochemically Induced Defects Promotional High-Performance Binder-Free MnO@CC Cathodes for Flexible Quasi-Solid-State Zinc-Ion Battery

“…The Ag/AgCl and graphite rod are used as the reference electrode and the counter electrode, holding a constant voltage (1.2 V) in an electrodeposition solution including 10 mM manganese(II) nitrate as the source of manganese; sodium nitrate (100 mM) and potassium citrate (0.5 mM) were used as supporting cation solutions and sodium dodecyl sulfate as an anionic surfactant. 26 Afterward, the electrodes were deposited at 80 °C for 1 h. The electrodes were washed with deionized water several times and dried at 60 °C under a vacuum overnight. The loading mass of the MnO 2 was measured by weighing the carbon cloth before and after electrodeposition, respectively.…”