Effect of voltage uniformity on the series use of lithium ion batteries Abstract: The cycle life of 18650 single cell battery under different charging voltage and over-discharge current was tested. The SOC of battery pack is caused by the quantitative difference, and the inc...

Advantages and disadvantages of NiMH battery: Advantages of Ni-MH battery 1. High energy density, 1.5 times higher than nickel cadmium; 2. The battery voltage is 1.2v-1.3v, which is equivalent to nickel cadmium battery; 3. No...

In the use of lithium-ion batteries, it should be noted that the battery will enter the sleep state after being placed for a period of time. At this time, the capacity is lower than the normal value, and the service time will also be shortened. However, lithium-ion batteries are easy to activate. Th...

According to the internal structure of the power lithium battery, the lithium ion battery is composed of four parts: positive material, negative material, separator and electrolyte, while the lithium iron phosphate battery uses lithium iron phosphate as the positive material. The ternary lithi...

Lightness The traditional lead-acid battery is relatively large in volume, and the vehicle weight is relatively heavier. The lithium-ion battery is not only small in size, but also relatively light in weight. Therefore, lithium-ion battery has more advantages in lightness th...

Difference between dry method and wet method of lithium-ion battery separator Comparison between wet diaphragm and dry diaphragm of lithium ion battery. Diaphragm is the core of lithium ion battery preparation. Lithium ion battery diaphragm is generally divided into dry proc...

The internal resistance of lithium-ion batteries is very high because the electrolyte inside is colloid rather than aqueous solution. In addition, the electrode material with extremely low water content and stable physical and chemical properties also enables the lithium ion battery to work safely i...

The protection board is designed to ensure safety and ensure that the lithium-ion battery will not be overcharged or over-discharged. In the past, overcharge and over-discharge of lithium-ion batteries would cause battery damage or explosion, fire and other hazards, so there was also a protect...

The 18650 lithium-ion battery is screened before the PACK. Different customers have completely different requirements for the cells before the 18650 lithium-ion battery PACK. Because the 18650 lithium-ion power battery is highly automated, stable and replaceable, it can effectively reduce production...

Recently, Jianyu Huang of Sandia National Laboratory in the United States and his research team announced that they had successfully developed the world's smallest nanolithium-ion battery. The rechargeable lithium-ion battery was made under a projection electron microscope of the Center fo...