5 Reasons Why Your Business Needs custom lipo battery pack？

In the ever-evolving landscape of energy storage technology, lithium-based batteries have emerged as the frontrunners, offering efficient and compact power solutions for a wide range of applications. Among these, lithium-ion (Li-ion) batteries and lithium-polymer (LiPo) batteries have established themselves as prominent choices for energy storage and power delivery for various industries. While both possess distinct advantages, this article will shed light on the numerous benefits of lithium-ion batteries and explain why they often outshine their lithium-polymer counterparts.

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First, Let's talk about the Lithium-ion battery: Lithium-Ion Batteries:

Lithium-ion batteries, often abbreviated as Li-ion batteries, are a popular and versatile form of rechargeable energy storage. They have become the go-to choice for numerous applications due to their impressive energy density, reliability, and adaptability. These batteries consist of lithium compounds as their cathodes, offering a range of advantages that make them the preferred choice for powering a wide array of modern devices and systems.

Advantages of Lithium-Ion Batteries:

1. High Energy Density: Lithium-ion batteries store a significant amount of energy relative to their size and weight, making them ideal for portable electronics and electric vehicles.
2. Longevity: They have an extended lifespan with a high number of charge-discharge cycles, reducing the need for frequent replacements and minimizing waste.
3. Safety Features: Li-ion batteries are equipped with protection circuits and thermal controls, making them inherently safer and less prone to overheating or short circuits.
4. Efficiency: These batteries have a lower self-discharge rate, meaning they can retain their charge for longer periods when not in use, making them an energy-efficient choice.
5. Versatility: Lithium-ion batteries can be designed to suit a wide range of applications, from small, compact cells for smartphones to large battery packs for electric vehicles, offering adaptability to various needs and devices.

Now, what is actually a lithium-polymer battery?

Lithium-polymer batteries, often referred to as LiPo batteries, but since they contain no polymers, should be referred to as Lithium Pouch. it is a subcategory of Lithium Ion cells, the only difference is that they are packed inside an aluminum package. Almost all chemistries related to Lithium can also be packed in pouch casing. this means that not all pouch cells are the same. they may contain very high-end and expensive chemistries – usually for pre-mass production and state-of-the-art EV batteries – will be very difficult to obtain these cells. Our focus here is on the common LiPo cells offered to the industry.

When we refer to Lithium Ion in our professional jargon, we generally refer to cells manufactured in metallic cylindrical or prismatic shape. most known are the and which are 18mm and 21mm in diameter respectively cylinder-shaped cells with 65mm and 70 mm in height respectively.

While they have their merits, LiPo batteries are known for specific characteristics and applications that set them apart from their lithium-ion counterparts. Understanding these distinctive features is key to appreciating their value in certain scenarios.

Advantages of LiPo Batteries:

1. Flexibility in Shape: Lithium-polymer batteries are more flexible in terms of shape and size compared to lithium-ion batteries. This versatility allows them to fit into unconventional spaces and find use in devices with unique form factors.
2. Lightweight Design: LiPo batteries are usually lightweight, making them a preferred choice for applications where weight considerations are paramount, such as in drones and radio-controlled models.
3. High Discharge Rates: These batteries are capable of delivering high discharge rates (20C~90C!), making them well-suited for applications that require rapid energy release, like racing drones and remote-controlled vehicles. Typically have high nominal voltage (typically 3.8V / cell ) to support the high current for a longer time.
4. Enhanced Power Density: LiPo batteries offer a slightly higher power density, which means they can deliver a burst of power more quickly. This characteristic is valuable in scenarios where immediate, high-energy output is necessary.
5. Seams easy to assemble: it is tempting for un-skilled battery design - hardware companies to work with LiPo because it is relatively simple to solder wires to it. this is not recommended, though, since applying so much heat on the aluminum electrode may damage the cell structure.

While LiPo batteries might not match the overall versatility and safety of lithium-ion batteries, their unique set of advantages makes them a valuable choice for specific applications where their characteristics align with the requirements of the device or system at hand.

Disadvantages of Lithium-Pouch Batteries:

1. Swelling: Everybody who ever worked with LiPo cells, knows what we mean. the structure and packaging of the pouch cells are subjected to swelling when the cell gets inflated and no more functioning. Sometimes it can happen to a fresh cell, which was poorly manufactured or held in bad storage conditions. It may happen to a battery pack that passed all inspections and deployed to the customer.
2. Manufacturers are generally either 2nd and 3rd Tier manufacturers. The premium and 1st tier cell manufacturers will usually use pouches for their special chemistries which are not available for the industry. The cells to be used for the industry are usually cylindrical and prismatic shapes with hard metallic shapes.
3. Longevity in peak performance: The datasheets are usually stretch the cell's ability and not conservative. A standard LiPo cell that supports 30C discharge rates probably allows 50-100 cycles which is fine for a consumer drone that is dedicated to hobby and consumer use, but not for an industrial/military Drone that needs to perform for a warranted period.
4.  Thermal performance: unlike cylindrical cells, LiPo cells don’t have a centralized thermal heat sink. This means that in a structure of cells in series, it will be difficult to clear the heat off the battery pack evenly. This will create a clear unbalance embedded in the battery pack design. This will lead to lose of capacity and swelling.

But, now let’s see why lithium-ion batteries will be the best choice for your application:

1. Manufactures:

The premium manufacturers such as Samsung SDI, Panasonic, LG ext. are offering the industry their cylindrical and prismatic cells at competitive prices, allowing verified and tested specifications, no swelling, and most importantly, batches are very much sorted. Meaning the cells are very very similar in voltage and internal impedance. A battery designer cannot stress the importance of a balanced battery pack enough, it carries a lot of weight to the long-term performance of the battery pack.

2. Durability and Longevity:

Li-ion batteries have proven to be more durable and long-lasting than LiPo batteries. Because of the very well-sorted batches and the good solid structure of the cells, you may count on them to reach the promised cycle life and deliver the promised performance. It is very crucial when building your product warranty and longevity around such an important component as batteries. It is much more noticeable when ramping up production.

3. Safety:

Safety is a paramount concern in battery technology. Li-ion batteries have a well-established safety record and are equipped with features such as protection circuits and thermal controls to minimize the risk of overheating and short circuits. LiPo batteries, on the other hand, are known for their susceptibility to swelling and a higher risk of fire or explosion if punctured, overcharged, or damaged. Many LiPo cells out there don’t follow the UL directive for cell safety.

4. Thermal behavior.

The cylindrical and prismatic shapes of Li-Ion cells offer ways to assemble the battery pack in a way that the thermal design is even, and able to manage the heat more efficiently. it is true when aiming to have an even thermal design, but more importantly, when aiming to cool or heat the battery pack externally.

5. Power delivery

The cylindrical and prismatic shapes of Li-Ion cells, offer ways to split and deliver the high power out of the battery pack, especially when aiming to deliver >100A currents like you often see in Drones and LEVs.

In conclusion, while lithium-pouch batteries have their own set of advantages, lithium-ion batteries often emerge as the preferred choice for many applications due to their superior energy density, longevity, safety features, and efficiency. As technology continues to advance, Li-ion batteries are likely to maintain their prominence as a reliable and efficient energy storage solution that powers the present and shapes the future.

Embrace the future of energy storage as we highlight the key reasons why lithium-ion batteries are powering the present and shaping the sustainable energy landscape of tomorrow.

Lithium battery cells are the backbone of modern devices and technologies. From powering electric cars to running your smartphone or storing renewable energy, these batteries play a vital role in our daily lives. However, not all lithium battery cells are created equal. High-quality lithium battery cells are essential to ensure safety, long-lasting performance, and overall product reliability.

This article will explore the top 5 benefits of choosing high-quality lithium battery cells. Whether you’re a business owner, a manufacturer, or someone interested in battery technology, this guide will help you make better decisions.

Part 1. What are lithium battery cells?

Lithium batteries are rechargeable batteries that store and release energy. When charged, lithium ions move from the positive to the negative electrode. When discharged, they flow back, creating the energy needed to power devices.

These batteries are popular because they are lightweight, store more energy in a small size, and have a longer life than traditional batteries like lead-acid or nickel-cadmium. Their efficiency and versatility make them the top choice for products like laptops, electric vehicles, power tools, and solar storage systems.

Part 2. Why does quality matter in lithium battery cells?

The quality of a lithium battery cell directly affects its performance, safety, and lifespan. Low-quality batteries may cause serious issues such as overheating, faster degradation, or dangerous accidents like fires or explosions.

On the other hand, high-quality lithium battery cells ensure:

• Stable performance over time.
• Safety features to prevent overheating or short circuits.
• Longer lifespan, reducing the need for replacements.

When you choose high-quality cells, you’re not just paying for better performance—you’re investing in the safety and satisfaction of end-users.

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Part 3. Top 5 benefits of choosing high-quality lithium battery cells

1. Longer lifespan

High-quality lithium battery cells are designed to last. Compared to cheaper alternatives, they can handle more charge and discharge cycles. A premium lithium battery can last up to 2,000–5,000 cycles. In comparison, low-quality batteries may degrade after just a few hundred cycles.

For example, a product using a high-quality battery will remain functional for years without frequent replacements. This saves money in the long run and improves the product’s reputation.

2. Improved energy efficiency

Energy efficiency is one of the most important factors in batteries. High-quality lithium battery cells can store and deliver energy with minimal losses. This ensures that more stored energy is used, leading to better performance.

For instance:

• An electric vehicle with efficient batteries will have a longer driving range.
• A solar energy system with high-quality batteries will store more electricity and provide reliable power during outages.
• Efficiency means your devices will work better and longer with each charge.

3. Enhanced safety

Safety is a major concern when it comes to batteries. Poor-quality cells are more likely to overheat, catch fire, or explode due to improper manufacturing or lack of safety features.

High-quality lithium battery cells are equipped with:

• Overcharge protection to prevent excessive voltage.
• Thermal management systems to avoid overheating.
• Short circuit protection to stop dangerous current flows.

These safety features ensure the battery operates smoothly under normal and extreme conditions, providing peace of mind to manufacturers and users.

4. Consistent performance in extreme conditions

Not all batteries are built to handle harsh environments. Low-quality lithium battery cells may fail in extreme temperatures or under heavy loads.

In contrast, high-quality lithium battery cells are engineered to maintain their performance, even in:

• High temperatures during summer.
• Cold during winter.

This makes them ideal for outdoor equipment, electric vehicles, and industrial tools, where reliability is critical.

5. Environmentally friendly and sustainable

Using high-quality lithium battery cells can also help the environment. Premium batteries last longer, meaning fewer batteries end up in landfills. Many leading manufacturers of high-quality batteries also follow sustainable production practices, reducing the environmental impact.

You’re improving your products by choosing better batteries and contributing to a cleaner and greener planet.

Part 4. How to identify high-quality lithium battery cells?

Is a battery high-quality? Here are a few things to look for:

• Brand reputation: Stick to trusted brands that specialize in lithium battery technology.
• Certifications: Check for certifications like UL, CE, or RoHS, which indicate the battery meets international safety standards.
• Cycle life: A good lithium battery should have a high cycle life, usually between 2,000 and 5,000 cycles.
• Safety features: Ensure the battery has protections for overcharging, overheating, and short circuits.
• Customer reviews: Read feedback from other users to confirm the battery’s performance in real-world use.

Part 5. Applications of high-quality lithium battery cells

1. Consumer electronics

Devices like smartphones, laptops, and tablets depend on lithium batteries for portability and long-lasting usage. High-quality batteries ensure better performance and longer runtimes.

2. Electric vehicles (EVs)

EVs rely heavily on lithium batteries for power. Premium cells provide a more extended driving range, faster charging times, and better safety, making them essential for the success of electric cars.

3. Renewable energy storage

Solar panels and wind turbines often store energy in lithium batteries. High-quality cells ensure the energy is stored efficiently and can provide reliable backup power during peak demand or outages.

4. Medical devices

Reliable, long-lasting batteries are essential for critical medical equipment, such as hearing aids or portable oxygen concentrators, to ensure patient safety and convenience.

5. Industrial tools and equipment

Power tools, drones, and robotics often operate in demanding environments where performance and durability are key. High-quality battery cells are a must for these applications.

Contact us to discuss your requirements of custom lipo battery pack. Our experienced sales team can help you identify the options that best suit your needs.

Part 6. FAQs