Graphene is a single atom planar thin film composed of carbon atoms, which is the lightest and hardest known nanomaterial in the world. Due to having only one layer of atoms, the motion of electrons is limited to a plane, making graphene the most conductive material in the world.Nowadays, almost all...

The possibility of replacing lithium-ion batteries with graphene batteries Information source: Dongguan Haobo Optoelectronic Technology Co., Ltd Recently, Ficus has launched a graphene battery car that is very attractive. The existence o...

What is the relationship between AH and voltage of lithium-ion batteries? The energy carried by lithium-ion batteries is expressed in wh, where wh=voltage (v) * ah For example, if the standard discharge voltage of a lithium-ion battery is 4.2 and the lithi...

Among them, the active substance of the positive electrode plate is lead dioxide powder, which looks a bit brown after overflowing with electricity. The active material of the negative electrode plate is sponge like lead powder, which becomes a gray color of metallic lead af...

Connect a wire from the 12V output end of the transformer to the positive (or negative) end of the rectifier diode and wrap the connection head with insulating tape. Connect the other wire at the 12V output end of the transformer to the positive (or negative) end of the capacitor. Connect the...

To create a self-made 12V battery charger, you first need a circuit diagram of the 12V charger. If there is a diagram, it is easy to make. Following the diagram can provide a clear and convenient way to start making. Prepare the necessary materials for production. Firstly, o...

Due to the significant difference between the method used during detection and the actual situation in the battery, it is not particularly reasonable to compare the puncture strength of the two types of separators directly. However, when the microstructure is fixed, the ones with high puncture...

③ Wettability To ensure that the internal resistance of the battery is not too high, it is required that the separator can be completely soaked by the electrolyte used in the battery, which is related to the separator material itself and the surface and internal microstruct...

2、 18650 lithium-ion battery separator performance parameters The factors that affect the performance of the 18650 lithium-ion battery separator include thickness, permeability, wettability, chemical stability, pore size, puncture strength, thermal sealing temperature, and...

(5) Rated capacity Refers to the discharge of the battery at a constant current of 0.5mA to a termination voltage of 2.75V before charging in an environment of 20 ± 5 ℃ and 65 ± 5% H; Leave for 15 minutes after standard charging; Discharge capacity at 0.2ItmA to 2.75V. Re...