Li-ion batteries are the lifeline of thousands of electrical appliances and vehicles. Their market is expected to reach 91.9 billion dollars by the end of 2026 due to exceptionally high demand. When compared to other batteries, lithium-ion batteries are best known for their high-voltage capacities and energy densities with lighter weight. One of the most reliable batteries in this category is the rechargeable 18650 Li-ion battery. Read on to discover the chemistry behind the rechargeable 18650 Li-ion battery and its vast applications.
How Does the Rechargeable 18650 Li-ion Battery Work?
The rechargeable 18650 Li-ion battery is a cylindrical rechargeable battery with dimensions measuring 21mm in diameter and 70mm in length. The following are the internal components of it:
1. Electrodes
There are two types of electrodes: anode and cathode. Anode, where oxidation occurs, is usually made of graphite or other carbon-based materials. Cathode is the electrode where reduction takes place. Cathode material can vary based on the intended use of the particular battery. Common materials include lithium manganese oxide, lithium cobalt oxide, lithium nickel cobalt manganese oxide, lithium iron phosphate, etc. Mostly, lithium cobalt oxide is used.
2. Separator Layer
It’s a thin, porous layer that separates both electrodes but allows the flow of lithium ions between them.
3. Electrolyte
It’s a medium or liquid that carries ions between both electrodes.
During charging, lithium ions leave the positive electrode (e.g. lithium cobalt oxide) and reach the negative electrode (e.g. graphite) via electrolyte while passing through the separator. Electrons from the external circuit come to the anode (negative electrode), which supplies the required charge to settle incoming lithium ions. During this process, lithium ions are intercalated on the negative electrode.
During discharging, lithium ions leave the anode. These pass through the separator via electrolyte to reach the cathode to combine with its materials. Electrons also leave the anode and go to the device, consuming the battery’s power.
Applications of Rechargeable 18650 Li-ion Battery
Due to its lightweight and versatility, the rechargeable 18650 Li-ion Battery is widely used in different electrical appliances. A few common applications of it include:
1. Power Tools
This high-rate battery plays a vital role in powering a range of power tools, including cordless drills, angle grinders, reciprocating saws, rotary tools, jigsaws, heat guns, and impact drivers, among others.
2. Household Appliances
In the realm of household appliances, the rechargeable 18650 Li-ion battery is a common choice, serving as a reliable power source for portable speakers, handheld mixers, flashlights, electric toothbrushes, LED fans, and electric shavers.
3. Medical Equipment
Medical equipment often relies on the performance and durability of these batteries. They can used in electrical stethoscopes, thermometers, portable ECG monitors, and other essential healthcare devices.
4. Communication Devices
Communication devices that require portability and extended battery life benefit from the use of the rechargeable 18650 Li-ion battery. Examples include satellite phones, portable CB radios, and portable WiFi hotspots.
5. Drones
These batteries also serve as power sources for drones, enabling longer flight times and improved performance. The 18650 High Rate Lithium Ion Battery 30T from Sunpower New Energy is exceptionally well-suited for this specific application.
Sunpower New Energy Offers Exceptional Lithium-Ion Batteries
Sunpower New Energy is the leading manufacturer of high-quality lithium-ion batteries with a special focus on safety. Its 18650 High Rate Lithium Ion Battery 30T is well-known for extraordinary performance even under harsh environmental conditions. This Li ion 18650 battery 3.7 V can be stored and operated in high-temperature environments, even at 85oC. It also offers a high discharge rate, which means it can seamlessly run power-hungry equipment.
When it comes to battery quality, you would be amazed to know that its swelling rate is less than 2 per cent. On top of that, the 18650 High Rate Lithium Ion Battery 30T also meets UL/CB/SGS/BIS/PSE/KC/MSDS/UN38.3 certification requirements. This means it’s absolutely safe to use this battery all around the globe.
Conclusion
A rechargeable 18650 Li-Ion Battery can be incredibly useful for powering communication devices, drones, medical equipment, household appliances, power tools, and backup devices. For those businesses who are planning to invest in these batteries, Sunpower New Energy is accepting both OEM and ODM orders to meet any specific requirements. So feel free to reach out to them and get your desired superior-quality products.