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Polymer lithium-ion batteries are manufactured in various types. Here’s a look at some of them:
Cylindrical Polymer Lithium-Ion Batteries
Cylindrical types derive their name from both the construction form and shape. Usually, they come with a rigid metal case with rolled polymer layers and in an electrode production configuration. Commonly, they exhibit a high energy density and come with great mechanical stability at the same time. Often, they are used in power tools, electric vehicles, and premium consumer gadgets. Also, they have a longer lifespan and are easier to cool. Nonetheless, they are more bulky compared to other configurations.
Prismatic Polymer Lithium-Ion Batteries
Conventionally, prismatic batteries come in a rectangular shape. They are manufactured with a metal casing or simply a flexible polymer aluminum casing. Often, they have a higher energy density than cylindrical designs. Mainly, they are preferred because of their lightweight and space efficiency features. Moreover, these batteries find usefulness in slim gadgets like smartphones, tablets, and laptops. Often, their space optimization capabilities allow the users to maximize the device’s design potential. Nevertheless, their thermal stability is less compared to the cylindrical variety.
Coin-Cell Polymer Lithium-Ion Batteries
Standard coin-cell batteries carry the features of a compact design. Frequently, they feature a thin, flat form. Besides, they are constructed in steel or with polymer layers inside. Customarily, they serve low power applications. Examples of such applications are wearables, medical devices, and small wireless gadgets. Economically, the batteries are easy to integrate into small spaces. Nonetheless, they possess a lower energy capacity compared to larger forms.
T-shaped Polymer Lithium-Ion Batteries
T-shaped batteries come with a unique design. Conventionally, they integrate a cylindrical part with a prismatic section. Beyond that, the design includes a 't' shape that allows for high energy density and great flexibility in installation. Ideally, these batteries are still under development. However, they hold great potential for future use in electric vehicles and devices that require both high power and energy densities at the same time.
Polymer Lithium-ion batteries possess a myriad of applications across various industries. Here’s a rundown of their applications:
Consumer Electronics
Polymer lithium ion batteries find extensive use in the ever-increasing consumer electronics industry. Usually, they power smartphones, tablets, laptops, and wearables gadgets. Commonly, these batteries’ light weight, flexibility, and high energy density make them ideal for incorporation in slim and portable designs. Often, the batteries offer fast charging, great energy retention, and enhanced device usage capabilities.
Electric Vehicles (EVs)
Typically, EVs are powered by batteries such as these. Usually, they provide the required energy for driving while offering a more extended range than traditional battery types. Besides, due to their high capacity and long charging cycle, they enable automotive manufacturers to design vehicles with improved ranges and reduced charging times. Thus, this makes them more appealing and efficient to customers.
Renewable Energy Storage Systems
Commonly, these batteries are essential in solar and wind energy storage systems. Normally, they help store excess energy generated at low demand periods for later use during high demand. Ideally, the ability to store energy facilitates an uninterrupted and steady energy supply. Therefore, it enhances the reliability of renewable energy solutions.
Medical Devices
These batteries are also vital in numerous medical devices. Customarily, they power portable diagnostic equipment, biomedical sensors, and implantable devices. In addition, their lightweight and compactness features allow seamless integration into handheld devices. This promotes mobility for healthcare professionals and patients.
Aerospace and Defense
Often, lithium polymer batteries are preferred in aerospace and defense applications due to their reliability under extreme conditions. Usually, they are used to power communication systems, avionics, and other critical gadgets. Also, their energy density and light weight make them suitable for portable military equipment. Therefore, these features ensure troops have the required power for mission success.
High-Performance Computing (HPC) Systems
These batteries enable uninterruptible power supply and fast data saving in the realm of high-performance computing. Commonly, the need for fast and reliable data storage solutions has made them a go-to option for data centers, servers, and other complex computing systems. Also, their rapid charging and discharging capabilities make them ideal for incorporation in high-speed applications.
Standard key features and specifications of these batteries include:
Architecture
Conventionally, these batteries utilize a lithium-ion gel or liquid electrolyte. Often, it enables a higher energy density and lighter weight than traditional lithium-ion models. Normally, the gel-like electrolyte provides flexibility in design. Thus, this allows for a thinner and lighter battery construction, hence suitable for portable applications.
Energy Density
Usually, polymer lithium-ion batteries feature high energy density. This makes them able to store larger amounts of energy in a compact space. Often, this characteristic leads to a longer runtime for gadgets such as smartphones, electric vehicles, and laptops before needing a recharge. Commonly, the energy density is typically in the range of 150–200 Wh/kg. This is depending on the specific chemistry used.
Charging Speed
Habitually, they support fast charging capabilities. Further, they enable quick recharging of devices in a short time period. Conventionally, the charging speed is usually dependent on the device and the charger used. Nonetheless, many smartphones can achieve up to 50% in less than 30 minutes.
Cycle Life
The typical cycle life of these batteries ranges from 500 to 1,500 cycles. This is largely depending on the usage and care of the battery. In addition, a cycle is defined as one full charge and discharge. Moreover, the longer the cycle life, the better the battery maintains its capacity over time, hence minimizing needs for replacement.
Safety
Often, these batteries come with enhanced safety features, including built-in protections against overcharging, short-circuiting, and high temperatures. In addition, the solid or gel-like electrolyte is less likely to result in leaks or combustion. Hence, it reduces risks in battery usage further.
Temperature Range
The ideal operating temperature range for these batteries is commonly between -20°C and 60°C. Nevertheless, for optimal performance and longevity, users are advised to operate the batteries at standard room temperatures. Exposing the batteries to extreme heat or cold can affect their capacity and overall lifespan ability.
When purchasing polymer lithium battery packs for business consider the following factors. They will help in stocking the right batteries:
Material
These batteries have different materials in their construction. They come with polymer electrolyte as opposed to the traditional liquid electrolyte. Normally, the materials used in a lithium battery construction determine its performance, energy density, and safety. Thus, buyers should get batteries with quality materials to ensure the gadgets their clients use function for long without overheating or losing charge.
Form Factor
Polymer batteries come with different shapes and sizes, such as prismatic, cylindrical, and coin-shaped. Usually, each form is suited for a particular application. For instance, prismatic batteries are used in electric vehicles, while coin batteries are used in wearables gadgets. Buyers should understand the various form factors and get options that serve different applications.
Energy density and capacity
Buyers should consider the energy density of polymer lithium-ion batteries. The density will determine how much energy the battery can store in a given space. Also, the capacity will affect how long the device can run. Ideally, clients using smartphones and other portable devices prefer batteries with high capacity and energy density. Buyers should stock batteries with varying capacities to suit different devices used in various places.
Safety features
Although lithium-polymer batteries have higher safety properties than other options, buyers should look for batteries with extra safety features. For instance, a built-in protection circuit. This will prevent overcharging and short circuits, as well as overheating issues.
Application areas
There are various lithium polymer batteries buyers can purchase for different applications. Identifying the areas where clients use the devices powered by the battery will help buyers ascertain the right products to purchase. Retail gadgets generally use these batteries. Also, they are ideal for portable equipment and medical devices. In recent developments, they are also used in electric vehicles and drones.
Charging speed and lifespan
The charging speed of these batteries normally lies between 1C and 4C. Usually, 1C refers to a 60-minute charge to full capacity. A longer charging speed will be more convenient to end-users. More importantly, buyers should consider the lifespan of these batteries. Ideally, they should last 2–3 years or 300–500 charge cycles.
Luckily, lithium polymer batteries don't have a memory effect. This allows them to be recharged at any point, even when they have not been fully discharged. In simple terms, users don't have to wait until the battery is completely drained before recharging it.
There are several ways business owners can advise their clients to extend the life of these batteries. Firstly, users should keep the battery between 20% and 80% of charge. Secondly, they should avoid exposing the device to extreme temperatures. More importantly, users should avoid keeping the battery at 0% state of charge for a long time.
Normally, when the batteries are not used for a long time, people store them in a safe place. To preserve them, they should be stored in a cool and dry place, away from direct sunlight. More importantly, they should be kept at a charge level of 40%–60%.
Yes. Ideally, users should keep lithium polymer batteries away from anything that produces significant heat. A good example is domestic gadgets. In addition, strong magnets and metal objects such as coins can interfere with the battery's internal structure. Therefore, users should always keep them away from such objects.
A lithium polymer battery should be disposed of properly. Its materials are recyclable. Many communities offer recycling programs specifically for lithium-ion batteries like this one. Therefore, when the time comes for these batteries to be disposed of, buyers should take them to local recycling centers that accept electronic waste.
