Li Ion Battery Cell
Your Professional Li Ion Battery Cell Supplier
Yiwu Ainengfa Technology Co., Ltd. is a national green energy enterprise, specializing in independent research and development, production and sales services of lithium-ion battery modules. The company consists of large number of experienced workers and multiple production equipment for lithium battery pack production, aging, and subassembly. At the same time, we have also built a large-scale battery testing center, whose advanced testing equipment is the core equipment used to develop safe batteries. We ensure the quality of every (offline) product through exquisite craftsmanship and scientific management processes.
Why Choose Us
Rich experience
The company established in 2022, but started export business in 2005. Till now, our technical team has been developing lithium battery for more than 10 years, while the sales department exporting battery for over 15 years, lithium battery more than 6 years.
Production Market
Our products have been exported to many countries and have won widespread praise and trust from customers. We also have in-depth cooperation with large lithium battery enterprises such as Ningde times, BYD and GuoXuan high tech.
Wide product range
The company mainly produces lithium-ion batteries, including iron phosphate (LiFePO4/LFP) batteries, ternary lithium-ion battery packs (NMC) and LTO lithium batteries. We can also produce lithium batteries in various configurations on demand, providing customers with personalized options.
Leading service
We independently complete the R&D, production, marketing, sales, and technical support processes. Whether you want to buy battery cells of any shape or material, or battery packs of different structures and sizes, you just need to send your requirements via email and we can customize the product for you.
Types of Li Ion Battery Cell
Nickel-Metal Hydride Batteries
Nickel-metal hydride (NiMH) batteries were once a popular choice for electric and hybrid vehicles, particularly before the rise of lithium-ion technology.
Solid-State Batteries
Solid-state batteries are an emerging technology that promises to revolutionize the electric vehicle industry. Unlike traditional batteries that use liquid or gel electrolytes, solid-state batteries use solid electrolytes.
Lead-Acid Batteries
Lead-acid batteries are one of the oldest types of rechargeable batteries and are widely used in various applications, including automotive, backup power, and low-speed electric vehicles.
Ultracapacitors
Ultracapacitors, also known as supercapacitors, are energy storage devices that differ significantly from traditional batteries. They store energy through electrostatic fields rather than chemical reactions.
Common Technical Specifications of Li Ion Battery Cell
Nominal Voltage
As mentioned earlier, the nominal voltage of a lithium-ion battery cell is typically 3.6 volts. The actual voltage of a fully charged cell is about 4.2 volts, and when discharged, it drops to approximately 3.0 volts.
Capacity and Energy Density
Capacity is usually measured in mAh (milliampere-hours) for small devices or Ah (ampere-hours) for larger batteries, indicating the total charge the battery can store. For instance, a smartphone battery may have a capacity of 3,000 mAh, while an electric vehicle battery pack may range from 20,000 mAh to 100,000 mAh or more.
Cycle Life and Performance
Cycle life refers to the number of charge and discharge cycles a battery can undergo before its capacity drops below a certain threshold (usually 80% of its original capacity). Lithium-ion batteries generally offer 500-1,500 charge cycles, depending on the specific chemistry used.
Key Features of Li Ion Battery Cell
High Energy Density
One of the most notable characteristics of lithium-ion batteries is their high energy density. This refers to the amount of energy a battery can store in relation to its weight and size.
Long Cycle Life
Lithium-ion batteries typically offer a long cycle life, meaning they can be charged and discharged many times before their performance significantly degrades. A typical lithium-ion battery has a cycle life of around 500 to 1,500 charge cycles, depending on the quality and use conditions.
Lightweight Design
Compared to other battery types, lithium-ion batteries are lightweight and compact, making them ideal for mobile applications. They are up to 40-50% lighter than comparable lead-acid batteries, which is a significant advantage in industries such as consumer electronics and electric vehicles, where minimizing weight is critical for performance and energy efficiency.
High Voltage and Efficiency
Lithium-ion batteries have a higher nominal voltage compared to other rechargeable battery types. Typically, the voltage for a lithium-ion cell is 3.6-3.7 volts, which is considerably higher than the 1.2 volts of a nickel-cadmium (NiCd) or nickel-metal hydride (NiMH) battery.
Low Self-Discharge Rate
Another important characteristic is the low self-discharge rate of lithium-ion batteries. Self-discharge refers to the rate at which a battery loses charge when not in use. Lithium-ion batteries have a self-discharge rate of about 2-3% per month, which is much lower than other battery chemistries such as nickel-cadmium, which may lose up to 20% of their charge per month.
Environmental Considerations
Although lithium-ion batteries are widely considered to be more environmentally friendly than older battery technologies, they still require careful handling and disposal due to the presence of materials like lithium, cobalt, and nickel. Recycling programs and advancements in battery technology are addressing these issues, making lithium-ion batteries increasingly sustainable.
Technical Parameters of Li Ion Battery Cell
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1.Capacity (Ah): A crucial performance metric, capacity measures the amount of electric charge a battery can deliver under specific conditions like discharge rate, temperature, and cutoff voltage. For instance, a 48V 200Ah battery can store 9.6 kWh of energy. Capacity varies as actual, theoretical, and rated, influenced by factors such as temperature, humidity, and charge/discharge rates. |
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2.Energy Density (Wh/kg or Wh/L): This refers to the amount of energy stored relative to the battery's mass or volume. Current lithium-ion battery technology offers energy densities between 100-200 Wh/kg, a bottleneck in many applications, particularly in electric vehicles. Higher energy density is essential for longer driving ranges. |
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3.Charge/Discharge Rate (C): This rate affects a battery's continuous and peak current during operation. For example, a 20Ah battery with a 0.5C rate means it can charge or discharge at 10A up to its cutoff voltage. High discharge rates are crucial for power applications like electric vehicles. |
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4.Voltage (V): This includes open-circuit voltage, working voltage, charge cutoff voltage, and discharge cutoff voltage. Voltage parameters are vital for the battery's performance and safety. |
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5.Cycle Life (times) and Depth of Discharge (DoD): Cycle life indicates the number of charge/discharge cycles a battery can undergo before significant capacity reduction. Depth of Discharge (DoD) measures the percentage of battery capacity used. A higher DoD usually means a shorter battery life. |
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6.Internal Resistance (Ω): It comprises ohmic resistance and polarization resistance. Lower internal resistance is preferred for better efficiency and reduced aging. |
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7.Self-discharge: This phenomenon refers to the loss of charge when a battery is not in use. Minimizing self-discharge is essential for maintaining battery life and performance. |
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8.Operating Temperature Range: Lithium-ion batteries have an optimal temperature range for operation, typically between -20℃ and 60℃. Deviating from this range can significantly impact battery performance and lifespan. |
Consumer Electronics
Lithium-ion batteries are the preferred power source for consumer electronics due to their compact size, lightweight design, and high energy density.
Electric Vehicles
The rise of electric vehicles (EVs) has been fueled by advances in lithium-ion battery technology. Electric vehicles require batteries that are lightweight yet capable of providing high energy output over long distances.
Renewable Energy Storage
Lithium-ion batteries play a significant role in renewable energy storage. Solar and wind energy systems rely on efficient energy storage to ensure a continuous power supply, especially during non-peak production times.
| Selling Units: | Single item |
| Single package size: | 30X15X10 cm |
| Single gross weight: | 1.000 kg |
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Quantity (units) |
1 - 10 |
11 - 50000 |
50001 - 100000 |
> 100000 |
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Lead time (days) |
9 |
29 |
39 |
To be negotiated |
FAQ
As one of the most professional li ion battery cell manufacturers in China, we're featured by quality products and good service. Please rest assured to buy customized li ion battery cell at competitive price from our factory. For more information, contact us now.
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