The difference is that the positive and negative electrode materials and electrolytes of liquid lithium-ion batteries and polymer lithium-ion batteries are made of different materials. One contains liquid and the other does not. Another form of soft bag is called a lithium-ion polymer battery.
Soft-pack lithium battery:
The soft-pack lithium battery is simply a liquid lithium-ion battery with a polymer shell. Structurally, it is packaged in aluminum-plastic film. If there is a safety risk, the soft battery will only swell and crack.
Polymer battery:
Lithium polymer battery (Li-polymer, also known as lithium polymer battery): It is also a type of lithium-ion battery, but it is different from the liquid battery. Lithium (Li-ion) battery is a new type of battery which has many obvious advantages such as high densityhigh energy, smaller size, ultra-thin, light weight and high safety. In terms of shape, lithium polymer batteries are ultra-thin and can be made into batteries of any shape and capacity to meet the needs of various products. The minimum thickness that this type of battery can achieve is up to 0.5 mm. Its rated voltage is the same as Li-ion 3.7V, and there is no memory effect.
Is the lithium polymer battery a lithium battery?
The lithium polymer battery itself has no electrolyte and is a substance conductive gel-like.
The soft batteries you are talking about should be lithium-ion batteries in soft packaging. Many of them in China are mislabeled as polymers.
The main reason for the softness of this type of battery is that too much electrolyte is added during the process ofproduction, or that the process of cooking the claw or forming the claw is missing, so that it becomes soft. It is also possible that the outer aluminum plastic film may be damaged, which can also cause softening.
If it cannot be charged once it becomes soft, it should be because the battery is bulging. If you leave it for a while, you will find that the battery is as hard as a rock.
Do not damage the battery at this time, because the lithium has been precipitated and lithium metal is very reactive and flammable.
It is recommended to replace the battery immediately.
What is the difference between lithium-ion batteries and lithium-polymer batteries?
Polymer batteries are a type of lithium battery. Lithium batteries are generally divided into steel shells, aluminum shells and lithium polymer batteries.
In the battery industry, they are generally called polymers. Lithium batteries. For soft lithium batteries, real lithium polymer batteries use solid or gel electrolytes and have very good safety performance. However, the so-called polymer batteries currently on the market are only flexible lithium batteries. -ionic battery.
Depending on the characteristics of lithium batteries, it is not necessary to fully charge the battery before use. If you need it in an emergency, just use it directly
But it is recommended. to fully charge it as much as possible. After all, lithium batteries are easy to use. As the number of uses increases, the battery capacity continues to decrease, which can reduce the number of charges and increase the lifespan. >
What is a soft battery
The difference isliquid lithium-ion. The materials of the positive and negative electrodes and the electrolytes of batteries and lithium-ion polymer batteries are made of different materials. liquidbody, none. Another form of soft bag is called a lithium-ion polymer battery.
Soft-pack lithium battery:
The soft-pack lithium battery is simply a liquid lithium-ion battery with a polymer shell. Structurally, it is packaged in aluminum-plastic film. If there is a safety risk, the soft battery will only swell and crack.
Polymer battery:
Lithium polymer battery (Li-polymer, also known as lithium polymer battery): It is also a type of lithium-ion battery, but it is different from the liquid battery. Lithium (Li-ion) battery is a new type of battery which has many obvious advantages such as high energy density, smaller size, ultra-thin, light weight and high safety. In terms of shape, lithium polymer batteries are ultra-thin and can be made into batteries of any shape and capacity to meet the needs of various products. The minimum thickness that this type of battery can achieve is up to 0.5 mm. Its rated voltage is the same as Li-ion 3.7V, and there is no memory effect.
1. Soft batteries
It is structurally packaged with aluminum-plastic film. In case of safety risks, soft batteries. only a bulge at most. A new type of battery that cracks from gas. For example: Soft-pack lithium battery is just a liquid lithium-ion battery with a polymer shell.
2. Soft pack batteries have some shortcomings:
(1) Existing soft pack battery cell models are few and cannot meet the demandof the market ; (2) The cost of developing new models is high.
Detailed information:
Soft pack batteries mainly have the following advantages: p>
1. Good safety: The soft-pack battery is structurally wrapped with aluminum-plastic film. In the event of loss of thermal management or puncture, the soft-pack will provide buffer space for the battery core. causing swelling and deformation, and possibly catching fire. Or smoke, but no explosion.
2. Lightweight and high energy density: Soft shell batteries are 40% lighter than steel shell batteries of the same capacity and 20% lighter than aluminum shell batteries. Therefore, they generally have higher energy. However, currently, most domestic battery manufacturers who have exceeded the energy density bar of 300 Wh/kguse flexible batteries.
3. Good electrochemical performance and long life: The internal resistance of soft-pack batteries is low, which can significantly reduce the battery's self-consumption in addition to the life of soft-pack batteries; is longer.
Baidu Encyclopedia-Soft Pack Lithium Battery