The common problems in the use and maintenance of lithium batteries
The lithium-ion battery has a nominal voltage of 3.7V (3.6V) and a charge cut-off voltage of 4.2V…
The lithium-ion battery has a nominal voltage of 3.7V (3.6V) and a charge cut-off voltage of 4.2V…
Various crystal forms of alumina (α, β, γ, δ, θ, etc.) have been found, among which γ-Al2O3 is also called active alumina.…
In the European market, due to the heat wave in Europe, the Rhine River, one of the main traffic arteries in Europe, has fallen sharply, causing logistical problems for barges transporting i…
composite concrete foaming agent is a non-polluting physical foaming agent produced by processing, deforming, and synthesizing various polymer components. It has good foaming ability, and its performance is neutral. Water has good affinity, and it is…