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Round lipo battery

Round Lipo Battery Production

Round lipo battery manufacturing requires strict quality control in the cathode and anode circular winding, uniform coating, and accurate size cutting to produce accurate batteries as designed. Furthermore, high professionalism is required to control the exact circular size of the round lipo battery, especially a small round lipo battery. Although the round lipo battery is not common in the market,but the round lipo battery manufacturing is already under large-scale production with safety and reliability guaranteed.

Custom Round Lipo Battery Manufacturer In China

In contrast with most rectangular-shaped pouch lipo batteries, the round lipo battery is custom-designed in a circular shape, formulated by the soft aluminum film package and polymer-based electrolyte.
3.7v lipo round battery​ can be fully customized in different round shapes with 10-50mm diameter and 3mm-10mm thickness to satisfy different round sizes and power

demand for smart rings, smart wearables, medical sensors, bluetooth earbuds, small IOT devices, electronic badges, and miniature toys. Furthermore, round lipo battery cells​ are flexible, lightweight, and thin, which is ideal for specific round space installation and pushing different devices’ innovative design.

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Production Process Flow Chart

1Incoming Inspection
2Material Warehousing
3Mixing
4Coating
5Calendering
6Slitting
7Electrode Sheet Making
8Winding
9Flat Press Test
10Appearance Inspection
11X-ray Inspection
12Top/Side Sealing
13Short Circuit Test
14Film Lamination
15Baking
16Electrolyte Filling
17Activation
18Formation
19Second Sealing
20Capacity Grading
21Aging
22OCV1
23Film Removal
24OCV2
25Appearance Inspection
26Cell Warehousing
27Pack Material Picking
28Cell Inkjet Coding
29Cell Voltage Inspection
30Cell Tab Trimming
31Terminal Wire Welding
32PCB Welding
33Insulation Wrapping
34Heat Shrinking
35Labeling
36Comprehensive Test
37Appearance Inspection
38Packing
39Shipment Inspection
40Warehousing
41Ship to Customer

    Key Features of round lipo battery

    High automation for the round lipo battery manufacturing
    High automation manufacturing

    VTCBATT adopts high automation for the round lipo battery manufacturing to ensure high precision and safety of the battery’s size and performance.Furthermore,we use special jig to fix the cell internal structure stablely in accurate size.VTCBATT has strong R&D capability to customize any round lipo batteries exactly as per your detalled requirement.

    Customization
    Customization

    With 20 years of experience in lipo battery manufacturing, VTCBATT can design any round lipo battery size as the customer’s demand. Full customization of the round lipo battery pushes the devices’ design innovation and multiple functions realization.

    High Energy Density
    High Energy Density

    Featuring a high energy density of 200wh/kg-250wh/kg, the round lipo battery can ensure high power for most devices, compared with normal non-rechargeable coin round batteries.
    Furthermore, the rechargeable capability of the round lipo battery brings convenience in battery replacement and saves cost in the long term.

    Lightweight
    Lightweight

    Compared to normal non-rechargeable coin round lithium batteries, the round lipo batteries are much lighter due to using the soft aluminum film. Furthermore, the soft aluminum film can maximize the energy output and optimize the space in a constrained size.

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    Application for Round Lipo Batteries

    • application - Smart Wearable Devices
      Smart Wearable Devices

      The round lipo batteries can be fully customized to fit in the round space of the smartwatches, smart belt, smart rings, and fitness devices, bringing great comfort and convenience for daily wear.

    • Medical Devices
      Medical Devices

      The hearing aid is round and fits in the ear, which requires a tiny round lithium battery to power the hearing aid every day. The round lipo battery can be precisely designed for the size of the hearing aid, and offers great convenience without frequent replacement.

    • application - Lighting
      Lighting

      Some lights for decorative purposes are specially designed in a circular shape, where only the round lithium batteries can fit in and ensure a continuous power supply without frequent replacement.

    What are the most common uses for round LiPo batteries in consumer electronics?

    A: Due to space constraints, round lipo batteries are commonly placed exactly in circular shapes, such as smartwatches, fitness trackers, key fobs,digital thermometers, compact diagnostic tools, IOT sensors, and backup power.

    How do I find the right size and voltage for a replacement round LiPo battery?

    A: First, you need to find the right size, voltage, capacity, chemistry, and model number of the original lipo battery you want to replace. Normally, there are clear marks on the label of these specific information.
    Second, you need to match the round lipo battery, which has the same value and specifications. If all is the same, then you can replace it directly.

    Are round lithium polymer batteries safe? What are the risks and safety tips?

    A: Yes, round lithium polymer batteries are safe. Like the normal prismatic lipo battery, the round lipo battery also conducts serious and strict tests of overcharge, over-discharge, overcurrent, short-circuit, and temperature cycling to ensure ultimate safety and reliability.

    Safety Tips for round lipo battery:
    1. Use a specific battery charger with a matched charge voltage.
    Note that some round lipo batteries can be designed to 3.8V or 3.9V higher voltage, which requires a 4.5V charge voltage. A normal 3.7V round lipo battery requires the standard 4.2V charge voltage.

    2. Don’t bend, puncture, or disassemble the round lipo battery.

    3. Keep the round lipo battery above 3.7V before storing them, and charge per 6 months for long-term storage.

    4. Make sure to use the round lipo battery with a built-in protection circuit to avoid overcharge,overdischarge, over current.

    5. Stop using the round lipo battery, which is swollen, leaking, or hot.

    What's the difference between a round LiPo battery and a standard coin cell battery (like CR2032)?

    A: 1. Materials difference
    Round lipo battery is a kind of rechargeable lithium battery, formulated by a polymer electrode and soft aluminum film.
    Standard coin cell battery is a non-rechargeable LiMn2O2 battery, formulated by metal case and manganese dioxide.

    2. Size difference
    Round lipo battery can be fully customized in different shapes and circular sizes.
    Standard coin cell has a standard cell model and can’t be customized.

    3. Energy density difference
    Round lipo battery has much higher energy density than a normal coin cell size battery.

    4. Voltage difference
    Round lipo battery can reach 3.7V,3.8V nominal voltage, while a standard coin cell battery only has 3.0V nominal voltage.

    5. Discharge profile difference
    Round lipo battery has a steady discharge curve from 4.2V to 3.0V, while coin cell lithium battery has a very flat discharge curve till the death voltage 3V.

    Where can I buy genuine round pouch LiPo batteries for my wearable device or IoT project?

    A: Yes.You can buy from the direct round lipo battery manufacturers,such as VTCBATT.Or some retail shop supply,such as Amazon,Didi-Key,RS Components.

    How long does a typical round LiPo battery last in terms of charge cycles and lifespan?

    A: The round lipo battery can last 500-1000 cycle lifespan of charge cycles.

    Can I recharge a non-rechargeable round battery with a LiPo charger?

    A: No. It’s dangerous to recharge a non-rechargeable round battery with a LiPo charger.

    What do the numbers and codes (e.g., LIR2032, ACR2032) on a round LiPo battery mean?

    A: LIR means lithium ion,Ion rechargeable,which is the battery raw materials.
    The number 2032 means the physical size of the battery in millimeters.

    How to properly dispose of or recycle an old or damaged round LiPo battery?

    A: First, you need to fully discharge the round lipo battery till no power. Package the battery separately without contact with metal, keys.

    Second, find the battery recycling trash near,which is common in supply chain stores of Walmart, HomeDepot,Best Buy.You can throw away the battery to the bin directly without any charge.

    Third,find the third party recycling and waste company,who can deal with the wasted battery in large q’ty under charge.

           
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