How to distinguish lithium battery and lithium polymer battery

1, lithium-ion batteries and lithium polymer batteries can be distinguished in the packaging label of the battery, lithium-ion batteries are usually marked with Li-ion, lithium polymer batteries are usually marked with Li-Polymer. At the same time, since the electrolyte of the lithium polymer battery is gel-like and has no electrolyte leakage problem, it is mostly aluminum plastic flexible packaging.

2. Lithium battery is a kind of battery which uses lithium metal or lithium alloy as negative electrode material and uses non-aqueous electrolyte solution, which was invented by Edison. The reaction equation for battery operation is: Li + MnO2 = LiMnO2 the reaction is a redox reaction and discharge. In the past, lithium batteries have not been used for a long time because the chemical properties of lithium metal are very active, and the requirements for processing, storage, and use are very high.

Lithium batteries are generally divided into two categories: lithium metal batteries and lithium ion batteries. Lithium-ion batteries do not contain metallic lithium and are rechargeable. The fifth-generation lithium-metal battery of rechargeable batteries was born in 1996, and its safety, specific capacity, self-discharge rate and performance price ratio are better than lithium-ion batteries.

3, lithium polymer battery (Li-polymer, also known as polymer lithium battery): compared to the previous battery, high energy, miniaturization, lightweight, is a chemical battery. In terms of shape, the lithium polymer battery has an ultra-thinning feature, and can be fabricated into batteries of different shapes and capacities in accordance with the needs of some products. This type of battery has a theoretical minimum thickness of 0.5 mm.

Lithium-ion batteries and lithium-polymer batteries can be distinguished from the packaging label of the battery. Lithium-ion batteries are usually labeled with Li-ion, and lithium-polymer batteries are usually labeled with Li-Polymer, as shown below. At the same time, since the electrolyte of the lithium polymer battery is gel-like and has no electrolyte leakage problem, it is mostly aluminum plastic flexible packaging.

The polymer lithium battery has the same chemical properties as the liquid lithium ion battery, and even the internal structure is the same. It is a new type of battery developed on the basis of liquid lithium ion battery. Compared with liquid lithium ion battery, polymer lithium Ion batteries have the following advantages:

Good safety performance, will not explode

Can be made into various shapes

Lighter than steel shell lithium battery and aluminum shell lithium battery of the same specification

The capacity is generally higher than the equivalent size of the steel shell lithium battery, aluminum shell lithium battery

The internal resistance is small, so that the battery capacity can be more exerted.

High temperature performance, no swelling at 4 °C for 8 hours

Cyclic performance, battery capacity, and internal resistance are consistent.

Polymer anode material for lithium ion batteries

It uses a conductive polymer as a positive electrode material, which is three times more energy than existing lithium-ion batteries and is the latest generation of lithium-ion batteries.

Since the liquid electrolyte is replaced by a solid electrolyte, the polymer lithium ion battery has the advantages of being thinner, arbitrarily aread, and arbitrarily shaped, and does not cause leakage, combustion, explosion, and the like. The problem is that the battery casing can be made of aluminum-plastic composite film, so that the specific capacity of the whole battery can be improved; the polymer lithium ion battery can also use the polymer as the positive electrode material, and the mass ratio energy will be higher than the current liquid lithium ion battery. Increase by more than 50%.

In addition, polymer lithium-ion batteries are more efficient than lithium-ion batteries in terms of operating voltage, charge and discharge cycle life, and the like. Based on the above advantages, the polymer lithium ion battery is known as the next generation lithium ion battery. Just like this.

Lithium polymer battery (Li-polymer, also known as polymer lithium battery): It is also a kind of lithium ion battery, but it has higher energy density, smaller size and thinner than liquid lithium battery (Li-ion), other obvious advantages such as lightweight and high security, is a new type of battery. In terms of shape, the lithium polymer battery has an ultra-thinning feature and can be fabricated into a battery of any shape and capacity in accordance with the needs of various products. The battery can reach a minimum thickness of 0.5mm. Its nominal voltage, like Li-ion, is also a nominal voltage of 3.7V with no memory effect.

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