What Is A Lithium Battery?

A lithium battery is a type of battery using a lithium metal or a lithium alloy as a negative electrode material and using a nonaqueous electrolyte solution. The first scientist to invent a lithium battery was Edison. Of course, people are now completely familiar with lithium batteries, especially the emergence of ESS All-In-One Indoor, which is widely used in vehicles, electric vehicles and other transportation fields, people's attention to lithium batteries has been upgraded to a higher level.

ESS All-In-One Indoor

Lithium battery classification

1. According to internal materials, lithium batteries are usually divided into two categories:

Lithium metal battery: A lithium metal battery is generally a battery using manganese dioxide as a positive electrode material, metallic lithium or an alloy metal thereof as a negative electrode material, and a nonaqueous electrolyte solution.

Lithium-ion battery: A lithium-ion battery is generally a battery using a lithium alloy metal oxide as a positive electrode material, graphite as a negative electrode material, and a non-aqueous electrolyte.

Although the lithium metal battery has a high energy density, it can theoretically reach 3,860 watts/kg. However, since it is not stable enough and cannot be charged, it cannot be used as a power battery for repeated use. Lithium-ion batteries have been developed as the main power battery due to their ability to be repeatedly charged. For example, Lithium-Ion Battery Pack For Golf Cart can be used repeatedly in this case. However, because of its combination with different elements, the composition of the cathode material varies greatly in various aspects, leading to an increase in the industry's disputes over the cathode material route.

2, by purpose; can also be divided into two categories:

The first one is the digital battery, which is the daily mobile phone, tablet, mobile power supply, etc. These are all digital batteries.

The second type is the power battery, which is Tesla, BYD some new energy electric vehicles, and batteries for products such as drones. These batteries require a large amount of instantaneous current, and digital batteries can not meet the instantaneous high current, so this The class is also called a high rate battery, and the price is more expensive than the digital battery.

3, according to the shell material, can be divided into three categories:

The first category, steel-shell batteries, as the name suggests, is that the outer casing is steel.

The second type, the aluminum shell battery, the same shell is made of aluminum.

The third category, polymer batteries, the outer shell is a polymer material, mostly silver, a few manufacturers are doing black, the industry has become black leather.

Lithium battery structure

The lithium battery structure is divided into five parts, namely, positive electrode, negative electrode, diaphragm, electrolyte and outer casing.

(1) The positive electrode of a lithium battery contains an active material, a conductive agent, a solvent, a binder, a matrix, and the like.

(2) The negative electrode of a lithium battery contains an active material, a binder, a solvent, a matrix, and the like.

(3) Lithium battery separator

(4) Lithium battery electrolyte

(5) The lithium battery case contains steel shells, aluminum shells, cover plates, tabs, insulating tape and other hardware.

The production process of lithium batteries is not very consistent with each manufacturer, but most of them are inseparable from these links, specifically as follows: material preparation - homogenization - coating - rolling - slitting - baking Bake - winding - into the shell - laser welding - baking - injection - pre-filling - sealing - cleaning - aging - full inspection - storage - shipping.

Objectively speaking, the lithium battery production process is divided into three major sections, one is the production of pole pieces, the second is the production of batteries, and the third is battery assembly. In the lithium battery production process, the pole piece production is the foundation, the battery core production is the core, and the battery assembly is related to the quality of the lithium battery product. The specific steps of the lithium battery production process include positive electrode drawing, negative electrode drawing, positive electrode sheet, negative electrode sheet, steel shell assembly, liquid injection and testing, and packaging.

The above is a description of the lithium battery. If you are interested in lithium batteries, you can contact us. We are an excellent developer and supplier of innovative intelligent energy storage systems, which can provide you with Rack Mount Li-Ion Battery System. Welcome you.

Why Does The Lithium Battery Pack Catch Fire And How To Deal With It?

Find here details of Lithium-Ion Battery Energy Storage System on our website. Today we would like to talk about why does the lithium battery pack catch fire and how to deal with it.

Lithium-ion battery ignition is a very unusual situation, but when it happens, it causes a strong reaction and causes a lot of exposure. Whether it is a storage station or an electric bicycle, the cause of the battery fire may be internal battery failure, not the battery itself. The main reason is that the heat is out of control. To know how to put out a fire, you must know what caused the battery to malfunction.

The main reason for the ignition of lithium batteries is that the heat in the battery is not released according to the design requirements, and a fire occurs after the ignition point of the internal and external combustion materials is reached. The main causes are external short circuits, external high temperatures and internal short circuits.

Lithium-Ion Battery Energy Storage System

How to deal with the ignition problem of lithium ion batteries? The professional factory who can supply you with Reliability Lithium-ion Battery System.

After fully understanding the cause of the ignition of the lithium battery, we should propose how to extinguish the fire after the fire. There are four ways to do this.

1. The installation is only a small fire, the high-voltage battery is not affected by the flame, and the carbon dioxide or dry powder fire extinguisher can be used to extinguish the fire.

2. If the high voltage battery is deformed or severely deformed in a severe fire, the battery may be malfunctioning. Then we have to put out a lot of water to put out the fire. There must be a lot of water.

3. When inspecting the specific conditions of the fire, do not touch any high-voltage components. Be sure to check that the entire inspection is performed using an insulated tool.

4. Be patient when extinguishing fires. It may take a whole day. If you have a thermal imaging camera, you can use it. Thermal imaging cameras can be monitored to ensure that the high voltage battery is completely cooled before the end of the accident. If this is not the case, monitor the battery throughout the process until the lithium-ion battery pack no longer heats up. Make sure there is no problem after at least an hour. We need a lot of time and effort to make sure it doesn't happen again, but don't worry too much. Lithium batteries are not explosive, and in general, such large accidents do not occur.

If you want to learn more information about LFP Battery Energy Storage System, feel free to contact us.

PROCUREMENT CONSIDERATIONS OF LITHIUM BATTERY

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LFP Battery System

Lithium batteries are classified into liquid lithium ion batteries and polymer lithium ion batteries. Lithium-ion batteries have fluid electrolytes, so they are more unstable than lithium-polymer batteries and can explode when subjected to external shock or when using substandard chargers. Many portable electronic products, such as mobile phones and laptops, use lithium batteries. For safety reasons, what precautions do we take when selecting and purchasing lithium batteries? As a professional factory who can supply Multifunctional Battery System would like to share with you.

Look at the standby time, which is the continuous use time of the next charge after the battery is loaded into the phone. The battery sold in the general market cannot guarantee the customer's standby time. This is because the battery quality is unstable, and many inexpensive batteries have a short standby time due to the use of a poor quality battery.

See if there is a clear capacity. Batteries that do not have a clearly labeled capacity may use poor quality batteries or recycled batteries. Many of the cheaper batteries that have emerged on the market are made from recycled batteries. Although the price is cheap, the life is short and the quality is unstable. Unintentional use can damage your phone.

Without a protective circuit board, lithium batteries are subject to deformation, leakage, and explosion. In a vicious competition with lower prices, looking for cheaper protection boards, or simply not using the equipment, the market is full of explosive lithium-ion batteries. Consumers don't see if they have a protective circuit board, so it's best to choose a reputable merchant to buy.

If you want to know more information about Lithium-Ion Battery Rack With BMS, feel free to contact us.

LITHIUM BATTERY IMPROVED WITH DEVELOPMENT

Find here details of LFP Battery System.

LFP Battery System

Here is a professional factory who can supply LFP Battery Pack For EV talking about lithium battery improved with development.

1.The energy ratio is relatively high. With high storage energy density, it has reached 460-600Wh/kg, which is about 6-7 times of lead-acid battery;

2. Long service life, the service life can reach more than 6 years, lithium iron phosphate is the positive battery 1C (100% DOD) charge and discharge, there are records that can be used 10,000 times;

3. The rated voltage is high (the single working voltage is 3.7V or 3.2V), which is equal to the series voltage of 3 nickel-cadmium or nickel-hydrogen rechargeable batteries, which is convenient to form the battery power pack;

4. With high power bearing capacity, which lithium iron phosphate lithium ion battery for electric vehicles can achieve 15-30C charge and discharge capacity, easy to start high-intensity acceleration;

5. The self-discharge rate is very low, which is one of the most outstanding advantages of the battery, currently can generally achieve 1% / month, less than 1 / 20 of nickel-hydrogen battery;

6. Light weight, the weight of the same volume is about 1/5-6 of lead-acid products;

7. High temperature and low adaptability, can be used in the environment of -20 ° C -60 ° C, after the process of processing, can be used in -45 ° C environment;

8. Green and environmental protection, no matter whether it is produced, used or scrapped, it does not contain any toxic and harmful heavy metal elements and substances such as lead, mercury and cadmium.

9. Production basically does not consume water, which is very beneficial for China that lacks water.

If you want to learn more information about High C-Rate Li-Ion Battery System, feel free to contact us.

WHY DOES THE LITHIUM BATTERY PACK CATCH FIRE AND HOW TO DEAL WITH IT?

Find here details of Lithium Iron Phosphate Battery System.

Lithium-ion battery ignition is a very unusual situation, but when it happens, it causes a strong reaction and causes a lot of exposure. Whether it is a storage station or an electric bicycle, the cause of the battery fire may be internal battery failure, not the battery itself. The main reason is that the heat is out of control. To know how to put out a fire, you must know what caused the battery to malfunction. As a professional company, we have LFP Battery Pack For EV.

Lithium Iron Phosphate Battery System

The main reason for the ignition of lithium batteries is that the heat in the battery is not released according to the design requirements, and a fire occurs after the ignition point of the internal and external combustion materials is reached. The main causes are external short circuits, external high temperatures and internal short circuits.

How to deal with the ignition problem of lithium ion batteries?

After fully understanding the cause of the ignition of the lithium battery, we should propose how to extinguish the fire after the fire. There are four ways to do this.

1. The installation is only a small fire, the high-voltage battery is not affected by the flame, and the carbon dioxide or dry powder fire extinguisher can be used to extinguish the fire.

2. If the high voltage battery is deformed or severely deformed in a severe fire, the battery may be malfunctioning. Then we have to put out a lot of water to put out the fire. There must be a lot of water.

3. When inspecting the specific conditions of the fire, do not touch any high-voltage components. Be sure to check that the entire inspection is performed using an insulated tool.

4. Be patient when extinguishing fires. It may take a whole day. If you have a thermal imaging camera, you can use it. Thermal imaging cameras can be monitored to ensure that the high voltage battery is completely cooled before the end of the accident. If this is not the case, monitor the battery throughout the process until the lithium-ion battery pack no longer heats up.

Make sure there is no problem after at least an hour. We need a lot of time and effort to make sure it doesn't happen again, but don't worry too much. Lithium batteries are not explosive, and in general, such large accidents do not occur.

If you need any information about Utility High Energy Lithium-ion Battery System, feel free to let us know.

DETAILED ANALYSIS OF THE CAUSES OF FAILURE FOR LITHIUM ION BATTERY

Find details of High Energy LFP Battery System on our website. We are a professional factory who can supply High C-Rate LFP Battery System.

Today we would like to share with you detailed analysis of the causes of failure for lithium ion battery.

High Energy LFP Battery System

Lithium-ion battery failure causes:

Commercial lithium-ion batteries often exhibit some failure phenomena during use or storage, including capacity reduction, internal resistance increase, rate performance reduction, gas production, liquid leakage, short circuit, deformation, thermal runaway, and lithium deposition. The performance, reliability and safety of lithium-ion batteries. These failures are caused by a series of complex chemical and physical mechanisms within the battery. The correct analysis and understanding of the failure phenomenon plays an important role in the performance improvement and technical improvement of the lithium ion battery.

Lithium-ion battery systems are complex, involving thermodynamics, kinetics, microstructure, interactions and reactions between components, and surface reaction.

Lithium-ion battery failure performance and failure mechanism:

(1) Capacity attenuation: The capacity attenuation of ion batteries is mainly divided into two categories: reversible capacity attenuation and irreversible capacity attenuation. Reversible capacity attenuation can restore the lost capacity by adjusting the battery charge and discharge system and improving the battery usage environment; irreversible capacity decay is an irreversible change in the internal battery that produces an unrecoverable capacity loss. The root cause of battery capacity attenuation is the failure of materials, and it is closely related to objective factors such as battery manufacturing process and battery use environment. From the material point of view, the main causes of failure are structural failure of the positive electrode material, SEI transition growth of the negative electrode surface, decomposition and deterioration of the electrolyte, corrosion of the current collector, and trace impurities in the system.

(2) Increase of internal resistance: The internal resistance of lithium-ion battery is related to the internal electron transport and ion transport process of the battery system. It is mainly divided into ohmic resistance and polarization internal resistance, wherein the polarization internal resistance is mainly caused by electrochemical polarization. There are two types of electrochemical polarization and concentration polarization. The main factors leading to the increase of the internal resistance of lithium-ion batteries are the key materials of the battery and the environment in which the battery is used. The use of synchrotron radiation technology to propose the transition mechanism of transition elements is the cause of potential hysteresis and voltage decay: It is shown that within the battery system, the abnormality of key materials is the fundamental influencing factor of internal resistance increase and battery polarization.

(3) Internal short circuit: The performance of short circuit can be divided into:

①short circuit between copper/aluminum current collectors;

②diaphragm failure loses electronic insulation or the gap becomes large, causing the positive and negative electrodes to be in micro contact, and local heat generation is serious. During further charging and discharging, it may spread to the surrounding area to form thermal runaway;

③The transition metal impurities in the positive electrode slurry are not removed, piercing the separator, or causing the lithium dendrites to form an internal short circuit;

④lithium dendrites lead to the occurrence of internal short circuits. In addition, unreasonable design and excessive local pressure can lead to internal short circuits during battery design and battery assembly. For example, the South Korean media SBS reported that Samsung Note7 caused a fire explosion, which pointed out that the positive and negative contacts caused by internal extrusion caused an internal short circuit, which caused thermal runaway of the battery. Under the induction of overcharge and overdischarge of the battery, internal short circuit will also occur, mainly due to the corrosion of the current collector, and deposition on the surface of the electrode. In severe cases, the positive and negative electrodes will be connected through the diaphragm.

If you want to know more about LFP Battery System, welcome to follow our website.

ECUBE BOOST NATIONAL DAY MILITARY PARADE

The annual National Day military parade will officially open on 1st October this year. As a professional factory who can supply LFP Battery System, Ecube carries the self-developed vehicle-mounted energy storage battery system to help military armored vehicles.

The BESS (battery energy storage system) is used for special equipment. It uses thirty two 3.2V single-cell LiFePo4 batteries connected in series to form a 102.4V battery system module for easy maintenance and quick replacement.

The positive and negative output terminals are clearly marked for easy connection and inspection. At the same time, the connection between the battery and the conductive row adopts high-power laser penetration welding technology, low impedance and high strength, ensuring connection reliability. With using IPG6000W laser + custom Busbar welding fixture equipment, the welding strength is reliable, and the welding speed of the equipment is up to 80mm/s.

The battery cell has a PE blue insulating film and a gap between the cells, as well, high melting point and 2000V-resistant plastic are used between the cells.

The material insulation bracket is insulated and fixed, covering the engineering plastic top, preventing touch and short circuit. Also, reserve space above the battery pressure relief valve to prevent excessive pressure explosion during abnormal conditions, and fully guarantee the safety.

Ecube has injected new impetus into the new energy market in Europe with a new attitude and excellent product performance, and brought new ideas and new developments to promote innovation and development in the global new energy field!

If you want to learn more information about Lithium-Ion Battery System and Integrated Battery System, welcome to follow our website.