What are the categories of lithium batteries? How many types of lithium batteries are there? Which c

Lithium batteries are usually divided into two main categories:

Lithium metal batteries: Lithium metal batteries generally use manganese dioxide.

It is a cathode material, lithium metal.

or its alloy metal is a negative electrode material.

Batteries that use non-aqueous electrolyte solutions.

Lithium-ion batteries.

Lithium-ion batteries are generally batteries that use lithium alloy metal oxide as the cathode material, graphite as the anode material, and non-aqueous electrolyte.

Although the energy density of lithium metal batteries.

high, theoretically up to 3860 watts kg. However, due to its unstable nature and the fact that it cannot be recharged, it cannot be used as a power battery for repeated use. Lithium-ion batteries are being developed as the main power batteries due to their ability to be recharged repeatedly.

However, because of its combination of different elements, the cathode materials composed of cathode materials have great differences in performance in all aspects, which leads to increased disputes in the industry over the cathode material route.

Usually the power batteries we talk about the most mainly include lithium iron phosphate batteries.

Lithium manganese oxide battery, lithium cobalt oxide battery and ternary lithium battery.

ternary nickel-cobalt-manganese).

The positive and negative electrode materials used in the two are the same, and the working principle is basically the same. The main area is the difference in electrolyte, liquid lithium-ion batteries use liquid electrolytes, polymer lithium-ion batteries are replaced by solid polymer electrolytes, this polymer can be "dry" or "colloidal", most of the polymer colloidal electrolytes are used at present. Among them, polymer lithium-ion batteries can be divided into three categories:

1) Solid polymer electrolyte lithium-ion batteries. The electrolyte is a mixture of polymer and salt, and this type of battery has low ionic conductivity at room temperature, making it suitable for use at high temperatures. (2) Gel polymer electrolyte lithium-ion batteries.

That is, additives such as plasticizers are added to the solid polymer electrolyte to improve the ionic conductivity so that the battery can be used at room temperature. (3) Lithium-ion batteries with polymer cathode materials. Using conductive polymer as the cathode material, it has three times the energy of existing lithium-ion batteries, and is the latest generation of lithium-ion batteries.

Lithium battery is a kind of primary battery that uses lithium metal or lithium alloy as the anode material and uses a non-aqueous electrolyte solution, which is different from a rechargeable battery Lithium-ion battery is different from lithium-ion polymer battery. The inventor of the lithium battery is Edison. Due to the very active chemical properties of lithium metal, the processing, storage and use of lithium metal have very high environmental requirements.

Therefore, lithium batteries have not been applied for a long time. With the development of microelectronics technology at the end of the twentieth century, the number of miniaturized devices is increasing, and high requirements are put forward for power supplies. Lithium batteries have then entered the stage of large-scale practical use.

It was first used in cardiac pacemakers. The self-discharge rate of lithium batteries is extremely low, and the discharge voltage is gentle. This enables the pacemaker implanted in the human body to operate for a long time without recharging.

Lithium batteries generally have a nominal voltage higher than volts, which is more suitable for integrated circuit power supply. Manganese dioxide batteries are widely used in calculators, digital cameras, and watches.

In order to develop varieties with better performance, research is carried out on various materials. The result is a product that has never been seen before. For example, lithium sulfur dioxide batteries and lithium thionyl chloride batteries are very distinctive.

Their cathode active material is also the solvent for the electrolyte. This structure is only found in electrochemical systems that are not aqueous solutions. Therefore, the research of lithium batteries has also promoted the development of electrochemical theory of non-aqueous systems.

In addition to the use of various non-aqueous solvents, research has also been carried out on polymer thin-film batteries. In 1992, Sony successfully developed lithium-ion batteries. Its practical application greatly reduces the weight and volume of portable electronic devices such as people's mobile devices**, notebooks, and calculators.

The use time is greatly extended. Since lithium-ion batteries do not contain heavy metal cadmium, compared with nickel-cadmium batteries, the pollution to the environment is greatly reduced.

It is divided into rate battery and ternary battery. 18650 is made of ternary materials. 26650 is iron-based using phosphorus suan.

Both 18650 and 26650 are cylindrical lithium batteries. There is also a polymer lithium battery. There are many specifications for this type of battery.

What kind of product uses what size battery.

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In terms of the application field of lithium batteries, China's lithium batteries are widely used in mobile phones, laptops, electric bicycles, electric vehicles, power tools, digital cameras and many other downstream fields, and grid energy storage accounts for only about 2% of the demand for lithium batteries, while mobile phones and laptops account for as much as 38% and 24% respectively.

Prospective Industry Research Institute released the "China lithium battery cathode material industry development prospects and investment ** analysis report prospects" research shows that China's mobile phone production shows a fluctuating growth trend, in 2007 mobile phone production of 100 million units, to 2012 production increased to 100 million units, 2013 1-10 months, China's cumulative output of mobile phones reached 1.2 billion units. This is mainly due to the improvement of the living standards of Chinese residents and the increase in consumer purchasing power to pull the demand for mobile phones.

From the perspective of notebook computer production, in recent years, China's notebook computer production has been increasing year by year, from 10,000 units in 2005 to 10,000 units in 2011, with an average annual compound growth rate of more than 32%. In 2012, China's notebook computer production was 100 million units, a year-on-year increase. From January to September 2013, the cumulative total output of notebook computers in China was 100 million units, a year-on-year increase.

Specific situation analysis, polymers, lithium iron phosphate, etc. are useful, electric vehicles, fuel vehicles, mobile phones are different.

The classification of lithium batteries is as follows:Lithium-ion batteries are usually classified by internal material:

1.Lithium metal battery: Lithium metal battery is generally a battery that uses manganese dioxide as the cathode material, lithium metal or its alloy metal as the anode material, and uses a non-aqueous electrolyte solution.

2.Lithium-ion batteries: Lithium-ion batteries generally use lithium alloy metal oxide as the positive electrode material, graphite as the negative electrode material, and non-aqueous electrolyte as the battery.

The mainstream lithium batteries used in the vehicle batteries of China's electric vehicle industry are three kinds of iron lithium, manganese lithium and ternary.

1 manganese-lithium. Pros: Cheaper; Good low-temperature performance, discharge at minus 20 degrees below minus 90% efficiency; Good safety performance.

Disadvantages: poor performance at high temperature; Low cycle life (generally the normal service life is about 300 to 400 times); gram capacity is lower (112); Differential rate discharge (such as when the car is uphill and when it starts quickly, it has a great impact on this type of battery).

2 Ternary. Advantages: ** is the most expensive of the three materials; High capacity (150.)can save volume); Good cycle life (600 to 700 cycles); The rate discharge is good.

Disadvantages: The safety performance is the worst of the three (especially with steel shells); At present, China's battery industry is not mature to master the material, and it is not used much.

3 Lithium iron Advantages: **Medium; Medium capacity(130); High cycle life (about 1500 times); Good high temperature performance; The rate discharge is good.

Cons: Not cheap; Poor low-temperature performance; In electric vehicles, its superior performance can be fully reflected (it can be fully charged in 6 minutes, and it can be discharged 20 times).

Lithium-fluoride and graphite batteries, lithium-manganese dioxide batteries, lithium-thionyl chloride batteries, lithium-iron sulfide batteries, lithium-copper oxide batteries.

Lithium batteries affect all aspects of our lives, we use the hand closure and shirt machine in the car cavity, the computers we use, the electric vehicles we use, the power banks we use, etc., which are equipped with lithium batteries.

There are four main types of lithium batteries: lithium iron phosphate batteries, lithium manganese oxide batteries, ternary polymer lithium batteries, and lithium cobalt oxide batteries. At present, there are three types of lithium batteries used in the mainstream, mainly lithium iron phosphate batteries, manganese lithium batteries, and ternary polymer lithium batteries.

1. Lithium batteries are divided into square lithium batteries (such as commonly used mobile phone battery cells) and cylindrical batteries (such as 18650 batteries). 2. Lithium battery outsourcing materials are divided into:

Aluminum shell lithium battery, steel shell lithium battery, pouch battery. 3. Lithium batteries are divided from positive and negative electrode materials (additives): lithium glute (LicoO2) battery or lithium manganese oxide (Limn2O4), lithium iron phosphate battery, disposable lithium manganese dioxide battery; Another point:

Lithium-ion LIB, polymer PLB.