42results about How to "Reduce interface side reactions" patented technology

The invention discloses a modified single crystal type multielement anode material and a preparation method thereof. Lithium salt containing modified anions is dispersed to a water solution which contains dissolvable lithium salt and an organic pore-forming agent, a coprecipitation multihole precursor is added into the mixture, and then modified single crystal type multielement anode material which has the D50 equal to 2-30mu m and is quite high in monodispersity degree is successfully prepared through a 'once sintering' process. Compared with the prior art, the modified single crystal type multielement anode material provided by the invention has the following obvious advantages: (1) the 'once sintering' process is adopted, the technical route is simple, and the cost is reduced substantially; (2) the monodispersity degree of the prepared single crystal multielement anode material is quite high, the compaction density and the energy density are high, the high-temperature cycle performance is excellent, and the modified single crystal type multielement anode material can be applied to electric tools, such as high energy density type consume electronic products, electro-mobiles and the like.

The invention discloses a modified single crystal ternary positive electrode material and a preparation method thereof. The present invention replaces the traditional cross-linking agent with the hydrogen bond between the coordination bond formed by the unique β-diketone group in curcumin and the lanthanide metal ion and the polymer chain, so as to obtain high elasticity and ductility. Sulfonic acid type polymer; the generated sulfonic acid can effectively reduce the amount of residual alkali on the surface of the material, and has both high elasticity and ductility, which can effectively maintain the structure of the material during the repeated charging and discharging of the battery, and improve the battery cycle performance. .