What are the differences between low-temperature lithium-ion batteries and ordinary lithium-ion batteries?
Low-temperature lithium-ion battery is a new type of lithium-ion battery, its main feature is that it can work normally at a lower temperature (usually -10°C to -50°C), suitable for power in cold regions or low temperature environments storage and use.
What is a lithium battery pack?
Lithium battery pack refers to the assembly and production of lithium batteries, also known as lithium battery pack. Pack refers to the customized packaging, encapsulation, and assembly of lithium batteries. The main process is divided into three parts: processing, assembly, and packaging. When several modules are jointly controlled or managed by the BMS and the thermal management system, the unified whole is called a lithium battery pack.
What are the requirements for lithium-ion battery electrolytes?
An electrolyte is a compound that can conduct electricity when dissolved in an aqueous solution or in a molten state, and can dissociate into freely moving ions when dissolved in water or heated. The electrolyte is an important part of the lithium-ion battery, which plays the role of transporting ions and conducting current between the positive and negative electrodes.
What is a metal lithium battery?
Lithium batteries can be roughly divided into two types: lithium metal batteries and lithium ion batteries. Lithium metal battery is a battery that uses metal lithium as the negative electrode, and the matching positive electrode material can be oxygen, elemental sulfur, metal oxide and other substances; lithium ion battery does not contain metallic lithium and is rechargeable.
What impact the charging temperature＜0 ℃ on the lithium-ion battery?
Li-ion battery charging in low temperature environment has certain risks. Because with the decrease of temperature, the dynamic characteristics of graphite anode become worse and worse. During the charging process, the electrochemical polarization of the anode is significantly intensified. The precipitated metal lithium is easy to form lithium dendrites, break through the diaphragm and cause the positive and negative pole short circuit. Try to prevent lithium ion batteries from charging at low temperature.
What is the charging and discharging principle of ternary lithium-ion battery?
The full name of the ternary lithium-ion battery is the ternary polymer lithium battery. The ternary polymer lithium battery refers to the lithium battery whose positive electrode material uses nickel-cobalt lithium manganate (Li(NiCoMn)O2) ternary positive electrode material. The ternary composite positive electrode material Precursor products are made of nickel salt, cobalt salt, and manganese salt. The ratio of nickel, cobalt, and manganese can be adjusted according to actual needs. The battery with ternary materials as the positive electrode is safer than lithium cobalt oxide batteries.
Precautions for charging, maintaining and using lithium batteries of lithium electric vehicles
The number of kilometers that a lithium battery electric vehicle can run on a full charge is mainly related to the capacity of the lithium battery configured, and also has something to do with the method of use and the quality of the lithium battery. Let's learn more about the lithium battery charging instructions, maintenance and use precautions of lithium electric vehicles!
What are the requirements for lithium-ion batteries on cathode materials?
The performance of the lithium-ion battery cathode material directly affects the performance of the lithium-ion battery, and its cost also directly determines the cost of the battery. At present, the positive electrode materials that have been successfully developed and applied mainly include lithium cobalt oxide, lithium iron phosphate, lithium manganate, ternary materials nickel cobalt lithium manganate (NCM) and nickel cobalt lithium aluminate (NCA).
What is the material of lithium battery separator?
Lithium-ion battery separator, in the structure of lithium battery, the separator is one of the key inner components. For the lithium battery series, since the electrolyte is an organic solvent system, a diaphragm material resistant to organic solvents is required, and a high-strength thin-film polyolefin porous film is generally used.
How many years is the life of a ternary lithium battery?
Ternary lithium battery, also known as ternary lithium polymer, refers to a lithium battery with nickel-cobalt manganate or nickel-cobalt aluminate as the positive electrode material. Ternary lithium batteries are widely used in new energy vehicles due to their smaller size, higher capacity density, and low temperature resistance.