HouYou Ploymer Cell Manufacturer

1. Lithium-ion battery type and capacity selection First, calculate the continuous current to be provided by the battery according to the power of your motor (the actual power is required, and the general riding speed will correspond to the corresponding actual power). For example, if the continuous current of the motor is 20A (1000w at 48V), the battery must be able to provide 20A for a long time and the temperature rise is very low (even if the outdoor temperature in summer is 35°C, the battery temperature is best controlled below 50°C). In addition, if the current is 20A at 48V, the overvoltage is doubled (96V, such as ecpu3), and the current continues to about 50A. If you like to use overvoltage for a long time, please choose a battery that can continuously provide 50A current (also pay attention to the temperature rise). The continuous current of the battery here is not the nominal battery discharge capacity of the merchant. The merchant claims that a few C (or a few...

Many times, when people go out, they will encounter the situation that the mobile phone is out of power and forget to bring the power bank and charger, which brings certain inconvenience to life. If there is such a piece of clothing, it looks no different from ordinary clothes, but it can wirelessly charge mobile phones and other electronic devices. Isn’t it exciting? Recently, researchers from Fudan University have developed a wearable battery fabric that can not only wirelessly charge mobile phones, but also provide sufficient energy for smart fibers that monitor human health data. Moreover, after repeated washing and folding, it can still maintain stable electrochemical and mechanical properties. The classic plane coating method is difficult to apply to high-curvature fibers, because when the fiber surface is coated, uneven coating such as beads is easily generated on the surface, which seriously affects the continuity and electrochemical performance of the fiber ele...

Polymer lithium ion batteries can be divided into three categories: 1. Solid polymer electrolyte lithium ion battery. The electrolyte is a mixture of polymer and salt. This battery has low ion conductivity at room temperature and is suitable for high temperature use. 2. Gel polymer electrolyte lithium ion battery. That is, additives such as plasticizers are added to the solid polymer electrolyte to increase the ionic conductivity and enable the battery to be used at room temperature. 3. Lithium-ion battery with polymer cathode material. Using conductive polymer as the positive electrode material, its energy is three times that of existing lithium-ion batteries , which is the latest generation of lithium-ion batteries. Due to the use of solid electrolytes instead of liquid electrolytes, compared with liquid lithium-ion batteries, polymer lithium-ion batteries have the advantages of being thinner, arbitrarily large, and arbitrarily shaped, and will not cause leakage, co...

  There are many reasons for the explosion of 18650 lithium-ion batteries, mainly three. 1. Overcharged Overcharging is a common cause of explosion of 18650 lithium-ion batteries. Lithium-ion batteries must work within the specified voltage range, otherwise there will be potential safety hazards of explosion and fire. For example, the normal voltage of a ternary lithium battery is 2.5V~4.2V; the normal voltage of a lithium iron phosphate battery is 2.0V~3.65V. When the 18650 lithium ion battery is charged, the lithium ions of the positive electrode move to the negative electrode and are embedded in the network structure of the negative electrode material. If the lithium ion battery is overcharged, it will easily cause the negative electrode lithium to precipitate, causing lithium crystals and piercing the diaphragm. Causes a short circuit inside the battery, which can cause an explosion. This is why an overcharge protection circuit is added to the lithium-ion batte...