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KET is an international manufacturing company that has over 13 years of experience in supplying and manufacturing batteries.
We have served more than 500 satisfied customers from various industries.
Our company boasts state-of-the-art manufacturing facilities, which include both automatic and manual machines. These machines help us produce products of reliable and standard quality. Additionally, KET is certified by ISO9001.
Your Best Wholesale Lithium Ion Battery Cell
A lithium-ion battery cell is a type of rechargeable battery that uses the movement of lithium ions between two electrodes (anode and cathode) to store and release electrical energy. The anode of a lithium-ion battery cell is typically made of a lithium-containing compound, such as lithium cobalt oxide (LiCoO2) or lithium manganese oxide (LiMn2O4), while the cathode is typically made of a different lithium-containing compound, such as
lithium iron phosphate (LiFePO4) or lithium nickel cobalt manganese oxide (LiNiCoMnO2).
A lithium-ion battery cell typically has a nominal voltage of around 3.6 to 3.7 volts, and a capacity measured in ampere-hours (Ah).
The capacity of a lithium-ion battery cell is determined by the amount of active material in the cell and the size of the electrodes. Lithium-ion battery cells are widely used in portable electronic devices, electric vehicles and
energy storage systems. They have a high energy density, long cycle life, and low self-discharge rate, but are also relatively expensive compared to other types of batteries.
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Types Of Lithium Ion Battery Cells
There are several types of lithium-ion battery cells, each with their own unique characteristics and uses. Some of the most common types include:
1.Lithium Cobalt Oxide (LiCoO2): This is one of the most common types of lithium-ion cells and is used in a wide range of portable electronic devices such as smartphones, laptops, and cameras. It has a high energy density and a relatively long cycle life, but it can be sensitive to high temperatures.
2.Lithium Manganese Oxide (LiMn2O4): This type of cell is known for its stability and safety, making it a popular choice for use in electric vehicles and other large-scale applications. It has a lower energy density than LiCoO2 but a longer cycle life.
3.Lithium Nickel Cobalt Manganese Oxide (NCM): This type of cell is a newer development and is known for its high energy density, long cycle life, and good thermal stability. It's commonly used in electric vehicles and energy storage systems.
4.
Lithium Iron Phosphate (LiFePO4): This type of cell is known for its good thermal stability and high safety. It has lower energy density than LiCoO2 and LiMn2O4, but it has a longer cycle life
How To Decide Number Of Cells In Lithium Ion Battery?
The number of cells in a lithium-ion battery can vary depending on the specific application and the desired voltage and capacity.
For example, a typical lithium-ion battery for a cell phone or laptop typically has one or two cells, each cell is typically rated at 3.6 or 3.7 volts, and the capacity of each cell is measured in ampere-hours (Ah).
On the other hand, larger batteries for electric vehicles or energy storage systems can have hundreds of cells connected in series or parallel to achieve the desired voltage and capacity. For example, an electric vehicle battery pack can have hundreds of cells connected in series to achieve a voltage of hundreds of volts, and in parallel to achieve the desired capacity.
It's important to note that the number of cells in a battery also affects the safety and the performance of the battery, for example, the more cells in series, the more voltage the battery will have, but also the more risk of overcharging, over-discharging or short circuit the battery has, that's why it's important to have a battery management system (BMS) that monitors and regulates the charging and discharging process.
What Is The Lithium Ion Battery Cell Voltage?
What is the
lithium ion battery voltage per cell? The voltage per cell in a
lithium-ion battery can vary depending on the specific type of lithium-ion chemistry used in the battery.
Typically, the voltage per cell for most common
lithium-ion batteries is around 3.6 to 3.7 Volts. This is the nominal voltage, which means that the voltage of a fully charged cell is around 4.2V, and the voltage of a fully discharged cell is around 2.5V.
However, some lithium-ion chemistries have different nominal voltages per cell. For example,
lithium iron phosphate (LiFePO4) has a nominal voltage of 3.2V per cell, and Lithium Nickel Cobalt Manganese Oxide (NCM) has a nominal voltage of 3.7V per cell.
It's important to note that the cell voltage of
lithium ion battery also affects the overall voltage of a battery pack, for example, if a battery pack has 10 cells connected in series, the overall voltage will be 10 x 3.6V = 36V. Additionally, the overall voltage of a battery pack can also be affected by the charging and discharging process, therefore it is important to use a charger and a battery management system (BMS) that are designed for the specific type of lithium-ion chemistry used in the battery.
Application Of Lithium Ion Battery Cell
Lithium-ion battery cells are widely used in a variety of applications due to their high energy density, long cycle life, and low self-discharge rate. Some of the most common applications include:
1.Portable electronic devices: Lithium-ion battery cells are commonly used in portable electronic devices such as smartphones, laptops, and tablets. They are ideal for these applications because they are lightweight, have a high energy density, and can be recharged many times.
2.Electric vehicles: Lithium-ion battery cells are increasingly used in electric vehicles (EVs) as they have a high energy density and long cycle life, allowing EVs to travel long distances on a single charge.
3.Energy storage systems: Lithium-ion battery cells are used in energy storage systems (ESS) to store excess energy generated by renewable energy sources such as solar and wind power. They are also used in microgrids and for peak-shaving in the utility grid.
4.Medical devices: Lithium-ion batteries are used in medical devices like defibrillator, pacemaker, and portable oxygen concentrator.
5.Industrial applications: lithium-ion batteries are used in a variety of industrial applications such as material handling, robotics, and off-grid systems.
6.Aerospace and military applications: Lithium-ion batteries are used in aerospace and military applications such as satellites, drones, and portable military equipment where weight and space are critical factors.
Overall, lithium-ion batteries are flexible and have a wide range of application, they have a high energy density, long cycle life and low self-discharge rate, making them well-suited for a wide range of applications.
FAQ
- What’s your warranty period for your products? When does it start?
- All of our products have a one-year limited warranty, starting from the shipping date.
- Can We Make One Custom Battery Pack?
- Common materials are available to support one custom battery pack.However, if special materials are required, you will need to contact us for specific MOQ.
- How to Ship Your Custom Battery?
- The logistics companies we work with are strong. Currently, depending on your destination and order, we are able to provide options such as air freight, sea freight, express delivery, rail transport and trucking.
- Is a lithium ion battery a galvanic cell?
- A lithium-ion battery is not a galvanic cell, also known as a voltaic cell.
A galvanic cell is a type of electrochemical cell that generates electricity through a chemical reaction. The chemical reaction in a galvanic cell typically involves the transfer of electrons from one electrode (the anode) to another electrode (the cathode) through an electrolyte. The anode and cathode are connected by an external circuit, allowing for the flow of electrical current.
- What is the lithium ion battery nominal cell voltage?
- The nominal cell voltage of a lithium-ion battery refers to the typical voltage at which the cell operates under normal conditions. The nominal cell voltage for most lithium-ion battery chemistries is around 3.6 to 3.7 volts per cell. This means that a typical lithium-ion battery pack, which is made up of multiple cells connected in series, will have a nominal voltage of around 3.6 to 3.7 x the number of cells in the pack.
For example, a typical lithium-ion battery pack for a consumer electronic device might have a nominal voltage of around 3.6V x 4 = 14.4V, while a pack for an electric vehicle might have a nominal voltage of around 3.7V x 8 = 29.6V.
It's worth noting that the actual voltage of a lithium-ion battery cell will vary depending on the state of charge (SOC) and the current being drawn from the cell. The voltage of a lithium-ion cell will be at its highest when the cell is fully charged and at its lowest when the cell is fully discharged.
- Comparison of different cooling methods for lithium ion battery cells
- There are several cooling methods that can be used for lithium-ion battery cells, each with its own set of advantages and disadvantages:
Air cooling: This is the most common method used in electric vehicles and consumer electronics. Air cooling is simple and inexpensive, but it may not be effective in high-power applications.
Liquid cooling: This method uses a liquid, such as water or glycol, to absorb and transfer heat away from the battery cells. Liquid cooling is more effective at removing heat than air cooling, but it is more complex and expensive.
Phase change material (PCM) cooling: This method uses a PCM, such as a wax or salt hydrate, that changes phase from solid to liquid as it absorbs heat. PCM cooling is more compact and lightweight than liquid cooling, but it may not be as effective in very high-power applications.
Thermoelectric cooling: This method uses the Peltier effect to transfer heat from one side of a semiconductor to the other, with the help of a DC power source. It is more efficient than air or liquid cooling and is relatively small, but it is also relatively expensive.
Heat pipe cooling: This method uses a heat pipe to transfer heat away from the battery cells. Heat pipes are very effective at removing heat, but they can be relatively expensive and complex to implement.
Ultimately, the best cooling method for a particular application will depend on factors such as the power level of the application, the size and weight constraints of the system, and the cost of the cooling solution.
- What is the largest lithium-ion battery cell?
- As of 2021, the largest lithium-ion battery cell is the Tesla Model 3 battery, which has a capacity of approximately 4,416 Wh (watt-hours). This means that the battery can store and release a maximum of 4,416 watts of power over a period of one hour. Other companies like CATL, LG Chem, and Panasonic also produce large lithium-ion battery cells with similar capacities.
- What is the lithium ion battery cell sizes type?
- Lithium-ion battery cells come in a variety of sizes and shapes, depending on the specific application and the desired capacity and voltage.
The most common sizes for lithium-ion battery cells are cylindrical and rectangular prismatic.
Cylindrical lithium ion battery cells are shaped like a cylinder and are commonly used in portable electronic devices such as smartphones, laptops, and power banks. They are available in a range of sizes, from small sizes like the 18650 (18mm diameter, 65mm length) to larger sizes like the 26650 (26mm diameter, 65mm length).
Rectangular prismatic cells are shaped like a rectangle and are commonly used in applications where space is limited, such as in electric vehicles and energy storage systems. They are available in a range of sizes, from small sizes like the 10520 (10mm width, 52mm length, 20mm height) to larger sizes like the 32650 (32mm width, 65mm length, 50mm height).
It's important to note that the size of a cell does not determine the capacity of the cell, the capacity is determined by the amount of active material inside the cell, which can vary depending on the type of lithium-ion chemistry used in the cell. Additionally, the size and shape of the cell can affect the safety and performance of the battery, so it's important to use cells that are compatible with the specific application and that meet the desired voltage and capacity requirements.
- What is the lithium ion battery half cell reactions?
- In a lithium-ion battery, the half-cell reactions refer to the chemical reactions that occur at the cathode and anode during charging and discharging. The cathode and anode are the two electrodes in a lithium-ion battery where the chemical reactions take place.
During charging, lithium ions (Li+) flow from the anode to the cathode through the electrolyte, while electrons flow in the opposite direction through the external circuit. At the anode, lithium ions are inserted into the anode material, typically graphite, and at the cathode, lithium ions are removed from the cathode material, which is typically a lithium-containing compound such as lithium cobalt oxide (LiCoO2), lithium nickel cobalt manganese oxide (NCM), or lithium iron phosphate (LiFePO4).
The half-cell reactions at the anode and cathode can be described as follows:
Anode (Li+ insertion): C(graphite) + Li+ + e- → LiC6
Cathode (Li+ removal): LiCoO2 + Li+ + e- → LiCoO2(Li+)
During discharging, the process is reversed, the lithium ions flow from the cathode to the anode, and the electrons flow from the anode to the cathode.
Anode (Li+ removal): LiC6 → C(graphite) + Li+ + e-
Cathode (Li+ insertion): LiCoO2(Li+) → LiCoO2 + Li+ + e-
It's important to note that the specific half-cell reactions will depend on the specific type of lithium-ion chemistry used in the battery. Additionally, in order to ensure the safety and stability of the battery, a good battery management system (BMS) is required to monitor and regulate the charging and discharging process, protecting the battery from overcharging, over-discharging, and short circuit.
- What is the lithium-ion battery cell production process?
- The production process for lithium-ion battery cells typically involves several steps:
1.Raw materials preparation: The first step in the production process is to prepare the raw materials, which typically include lithium compounds (such as lithium cobalt oxide, lithium nickel cobalt manganese oxide, or lithium iron phosphate), graphite, and other materials. The raw materials are carefully blended and processed to ensure consistency and quality.
2.Cell assembly: Next, the blended materials are assembled into cells. This typically involves creating a cathode and an anode, which are separated by a separator. The cathode and anode are typically made by coating the blended materials onto a thin sheet of aluminum or copper.
3.Cell sealing: The assembled cells are then sealed to prevent any leakage of the electrolyte and to protect the internal components of the cell.
4.Cell testing: After the cells are sealed, they are tested to ensure that they meet the desired specifications and to identify any defective cells.
5.Cell packaging: The final step in the production process is to package the cells. This typically involves placing the cells in a protective casing and attaching terminals for connecting the cells to a battery management system.
It's important to note that the production process for lithium-ion battery cells can vary depending on the specific materials and manufacturing methods used. Additionally, safety precautions must be taken during the production process to avoid accidents and to ensure the quality of the final product.
- What is the guide about recondition lithium ion cell phone battery?
- Reconditioning a lithium-ion cell phone battery can help extend its life and improve its performance. Here is a general guide on how to recondition a lithium-ion cell phone battery:
1. Fully discharge the battery: Before reconditioning, it's important to fully discharge the battery. This can be done by using the phone until it powers off or by using a specialized discharge tool.
2. Charge the battery: Next, charge the battery to 100%. Make sure to use a specialized charger and to follow the manufacturer's instructions for charging.
3. Let the battery cool down: After the battery is fully charged, let it cool down to room temperature before discharging it again.
4. Fully discharge and charge the battery again: Repeat steps 1 and 2 two or three times to recondition the battery.
5. Calibrate the battery: Calibrating the battery can help improve its accuracy in displaying the remaining charge. To calibrate, fully charge the phone and then use it until the battery drains completely.
6. Properly store the battery: When not in use, store the battery in a cool, dry place. Avoid storing the battery in extreme temperatures or in a fully charged or fully discharged state.
It's important to note that reconditioning a battery can only do so much to improve the performance of an old or worn out battery and it may be necessary to replace it at some point. Additionally, it's important to use the proper tools and follow the manufacturer's instructions when reconditioning a battery to avoid any damage.
- Are lithium-ion batteries considered dry-cell batteries?
- Yes, lithium-ion batteries are considered dry-cell batteries. Dry-cell batteries are a type of primary or secondary battery in which the electrolyte is a paste or solid and is not free to move. They are sealed and do not require water or other liquid to maintain the electrochemical reaction.
Lithium-ion batteries are a type of rechargeable dry-cell battery that uses lithium ions as the main component of the electrolyte. They are sealed and do not require water or other liquid to maintain the electrochemical reaction. Because of their high energy density and long lifespan, they have become a popular choice for a wide range of portable electronic devices and electric vehicles. So lithium-ion batteries are not considered wet-cell batteries.
In contrast, wet-cell batteries are primary batteries in which the electrolyte is a liquid that is free to move. They are commonly used in automobiles, boats, and other vehicles.Lithium-ion batteries are not considered wet-cell batteries. They have a lower energy density and shorter lifespan than dry-cell batteries, but they are also less expensive.
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