Battery Manufactory

Battery technology is the biggest threshold for the vigorous promotion and development of electric vehicles, and the battery industry is at a stage where the development of lead-acid batteries and traditional lithium batteries is at a bottleneck. The battery industry and even the electric vehicle industry have brought new changes. So which is better, graphene battery or lithium-ion battery? What is the difference between graphene batteries and lithium batteries? 1. Which is better, graphene battery or lithium battery Graphene battery is a honeycomb flat film formed by sp2 hybridization of carbon atoms. It is a quasi-two-dimensional material with a thickness of only one atomic layer, so it is also called single atomic layer graphite. A new energy battery is developed by utilizing the characteristics of rapid and massive shuttle motion of lithium ions between the graphene surface and electrodes. Due to the characteristics of high conductivity, high strength, and ultra-thin...

Lithium-ion batteries have the advantages of light weight, large capacity, and no memory effect, so they are widely used. Many digital devices use lithium-ion batteries as power sources, although their prices are relatively expensive. Lithium-ion batteries have high energy density, their capacity is 1.5 to 2 times that of nickel-metal hydride batteries of the same weight, and they have a very low self-discharge rate. In addition, lithium-ion batteries have almost no "memory effect" and the advantages of no toxic substances are also important reasons for their wide application. There are also many types of lithium batteries. This article compares the two types of lithium batteries: 18650 lithium battery and 26650 lithium battery. 1. 18650 lithium battery 18650 lithium battery where 18 represents a diameter of 18mm, 65 represents a length of 65mm, and 0 represents a cylindrical battery. Generally, 18650 batteries are used more in industry, but few in civilian use...

There are two main types of rechargeable batteries on the market: nickel-metal hydride batteries and lithium-ion batteries, and the problem that people are concerned about whether the batteries cannot be charged is mostly for these two types. Batteries of the same type and specification can be connected in parallel, in series and in combination to form assembled batteries with different numbers of cells. As a common phenomenon, people want to understand the reasons behind the failure of batteries and battery packs to charge and seek solutions. The reasons why the battery cannot be charged can be divided into the internal reasons inherent in the battery itself and the external reasons for the battery to charge. Lithium-ion batteries are gradually occupying the original market of nickel-hydrogen batteries due to their superior performance. Therefore, the lithium-ion battery charging is mainly explained here, and nickel-hydrogen batteries are mentioned in the difference. Th...

Nickel-metal hydride batteries and lithium-ion batteries are widely used in the market. They are non-polluting and environmentally friendly batteries and are important areas for new energy development. So which is better, Ni-MH battery or Li-ion battery? The difference between lithium-ion batteries and nickel-metal hydride batteries Structurally, the positive electrode of the nickel-hydrogen battery is Ni(OH), the negative electrode is metal hydride, and the electrolyte is 6mol/L potassium hydroxide solution. The lithium ion battery is a negative electrode by inserting lithium ions into petroleum coke and graphite. The positive electrode material is usually LixCoO2, LixNiO2 or LixMnO4. The electrolyte composition is relatively complex, and LiPF6 + diethylene carbonate + dimethyl carbonate is mixed in proportion. Due to its mature technology and good safety, nickel-metal hydride batteries are an important choice for hybrid electric vehicle (HEV) batteries, but it is dif...

In order to effectively improve the storage capacity of lithium batteries, people generally adopt the method of increasing the battery capacity to achieve the purpose. However, limited by the nature of the raw materials used, the increase in capacity is always limited, so increasing the voltage value has become another way to improve the power storage capacity of lithium batteries. As we all know, the nominal voltage of lithium battery is 3.6V or 3.7V, and the maximum voltage is 4.2V. So, why can't the voltage of lithium batteries get a bigger breakthrough? In the final analysis, this is also determined by the material and structural properties of lithium batteries. The voltage of a lithium battery is determined by the electrode potential. Voltage, also known as potential difference or potential difference, is a physical quantity that measures the energy difference between charges in an electrostatic field due to different potentials. The electrode potential of lith...

Lithium battery is a product that requires high quality and high safety. Consumers often do not know the performance of the battery when using it, so the working efficiency of the battery often does not reach the ideal target during use, and sometimes even blind use can cause battery explosions. So understanding the performance of the battery is also crucial. The performance test of  Polymer Lithium-ion battery mainly includes voltage, internal resistance, capacity, internal pressure, self-discharge rate, cycle life, sealing performance, safety performance, storage performance, appearance, etc. Others include overcharge, overdischarge, weldability, corrosion resistance sex, etc Method / step 1. Self-discharge test The self-discharge test of lithium-ion battery is: generally use 24-hour self-discharge to quickly test its charge retention capability, discharge the battery to 3.0V at 0.2C, charge to 4.2V at constant current and constant voltage 1C, cut-off current: 1...