There are several types of lithium batteries.

Lithium batteries used in the Chinese electric vehicle industry are mainly three types of iron lithium, manganese lithium, and ternary.

Lithium manganese. The price is cheap. 2. Good low temperature performance, discharge at minus 20 degrees can have more than 90 % efficiency. 3. Good safety performance.

However, he 1. High temperature performance difference 2. Low cycle life(usually about 300 to 400 normal service life) 3. G is lower than capacity(112) 4. Multiplex discharge difference(such as car uphill and fast start, It has a great influence on this type of battery)

The price is the most expensive of the three kinds of materials. 2. High capacity(150. can save volume) 3. Good circulation life(600 to 700 times) 4. High power discharge

But he 1. Safety performance is the worst of the three(especially steel shell).

Ferric Lithium 1. Price 2. In capacity(130) 3. High cycle life(around 1500 times) 4. High temperature performance 5. Times the rate of discharge is good

But it is not cheap. Low temperature performance is not good. It can fully demonstrate its superior performance(6 minutes full of electricity, 20 times discharge) in electric vehicles.

The Steel Shell Lithium Division was established in 2009 and is an important part of Guangzhou Fengjiang Battery New Technology Co., Ltd..

The business department has a professional technical team and has achieved outstanding achievements in electrochemical, electronic and power technologies, materials, safety and battery reliability research, which has laid a solid technical foundation for better meeting global customer needs.

While upgrading the traditional lithium battery production process, the business department has always been committed to the application of new material/technology, process/process innovation, and automation/standardization, making the product's high reliability and high cycle life consistently among the best in the industry.

"Lithium battery" is a type of battery that uses lithium metal or lithium alloy as a negative electrode material and uses a non-aqueous electrolyte solution. In 1912, the lithium metal battery was first proposed and studied by GilbertN. Lewis. In the 1970s, M.S. Whittingham proposed and began to study lithium ion batteries. Due to the very lively chemical properties of lithium metals, the processing, preservation, and use of lithium metals require very high environmental requirements. Therefore, lithium batteries have not been used for a long time. With the development of science and technology, lithium batteries have now become the mainstream.

Lithium batteries can be roughly divided into two categories: lithium metal batteries and lithium ion batteries. Lithium-ion batteries do not contain metallic lithium and can be charged. The fifth-generation lithium metal battery of rechargeable batteries was born in 1996, and its safety, specific capacity, self-discharge rate and performance price are better than those of lithium-ion batteries. Due to its own high-tech requirements, companies in only a few countries are now producing this lithium metal battery.

Lithium metal battery:

Lithium metal batteries generally use manganese dioxide as a positive electrode material, lithium metal or its alloy metal as a negative electrode material, and batteries using non-aqueous electrolyte solutions.

Basic Principles of Lithium Battery

Basic Principles of Lithium Battery

Discharge reaction: Li + MnO2 = LiMnO2

Lithium-ion batteries:

Lithium-ion batteries generally use lithium alloy metal oxides as positive electrode materials, graphite as negative electrode materials, and batteries using non-aqueous electrolytes.

The reaction that occurs on the charging positive pole is

LiCoO2 = Li(1-x) CoO2 + XLi + Xe-(electron)

The reaction that occurs on the charge negative pole is

6C + XLi + Xe-= LixC 6

Total rechargeable battery reaction: LiCoO2 +6 C = Li(1-x) CoO2 + LixC6

positive electrode

Positive materials: There are many optional positive materials, and mainstream products are mostly lithium iron phosphate. Different positive material comparisons:

LiCoO2

3.7 V

140mAh/g

Li2Mn2O4

4.0 V

100 mAh/g

LiFePO4

3.3 V

100 mAh/g

Li2FePO4F

3.6 V

115 mAh/g

Positive reaction: Lithium-ion embedding during discharge, lithium ion deembedding during charging. Charging: LiFePO4 → Li1-xFePO4 + xLi + + XE-Discharge: Li1-xFePO4 + xLi + XE-→ LiFePO4.

negative electrode

Negative materials: More graphite. New research has found that titanate may be a better material.

Negative reaction: lithium ion is deembedded during discharge, and lithium ion is embedded during charging.

When charging: xLi + + XE-+6C → LixC6

Discharge: LixC6 → xLi + XE-+6C

Lithium batteries were first used in pacemakers. Lithium batteries have the advantages of extremely low self-discharge rates and flat discharge voltage, allowing pacemakers implanted in the human body to operate for a long time without recharging. Lithium batteries generally have a nominal voltage of more than 3.0 volts, which is more suitable for integrated circuit power supplies. Manganese dioxide batteries are widely used in calculators, digital cameras, and watches.

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