The new lithium iron phosphate battery from Pacific Automotive Network is slightly bulged and cannot be used. Even if the lithium iron phosphate battery is short-circuited, it generally does not explode. With the development of science and technology, lithium battery technology is also constantly improving. At present, lithium batteries are widely used in various industries and are one of the indispensable elements.
The bulged lithium iron phosphate battery may explode, so be sure to stop using it. Lithium batteries swell due to overcharging during charging. The internal chemical properties of the battery change and gas is produced. Typically, soft polymer batteries “swell” when overcharged. If they are steel shell batteries, they explode. Be careful when using it. It is best not to useUse cheap chargers. Cheap chargers have a big impact on battery life. It is best not to use a “bulged” battery as it is very dangerous and it is recommended to replace it.
The main reason why lithium iron phosphate batteries swell is that a violent reaction similar to a short circuit occurs inside the battery, generating a large amount of heat, which which causes the electrolyte to decompose and gasify, and the lithium battery will swell. When a swelling problem occurs in a lithium iron phosphate battery, it is best not to continue using the problematic battery. Because the battery core expands, when the expansion reaches a certain limit, it may explode, which is very dangerous. For your own safety, it is best to replace the lithium battery as soon as possible when youFeel for a bulge.
You may have seen or heard about battery swelling, and there are even new incidents of explosions and casualties caused by lithium polymer battery swelling. A bulging battery will affect its use and cannot fit into a cell phone or digital camera. Additionally, the presence of gas between the battery plates will also affect the charge and discharge capacity of the battery. Lithium batteries have strict requirements for chargers and cannot be connected. At will power supply. As for careless charging, you should use a charger specifically designed for lithium batteries. If the charger used does not meet the requirements, it may cause battery swelling, safety accident or even explosion.
Lithium iron phosphate batteries will not explode or catch fire innormal circumstances. Lithium iron phosphate batteries are relatively safe during normal use, but there is no guarantee that they may be dangerous in certain extreme circumstances. This has a lot to do with each company's material selection, ratio, process and subsequent use.
Although lithium iron phosphate material has the highest thermal stability and structural stability among all current cathode materials in terms of thermodynamics, and has also been verified in performance tests However, there are still many problems in terms of materials and structural stability. In terms of the possibility and probability of a short circuit inside the battery, this can be the most dangerous.
1. Bulging of lithium iron phosphate batteries caused by overcharging will cause all lithium atoms in the material to be displaced.iau of the positive electrode into the material of the negative electrode, causing the original complete grid of the positive electrode to be deformed. and collapse. This is also the case for iron phosphate batteries. One of the main reasons for the decline in lithium battery power. During this process, there are more and more lithium ions in the negative electrode. Excessive accumulation causes lithium atoms to turn into strain crystals, causing the lithium iron phosphate battery to swell.
2. The bulge caused by over-discharge occurs when the liquid lithium-ion battery is charged and discharged for the first time. During the process, the electrode material and electrolyte react at the solid-liquid interface to form a passivation layer covering the surface of the electrode material.
(Images/Text/Photos: Pacific Automotive Network Calling Q&Athe Beast)