Lithium Polymer Battery Suppliers

Lithium polymer batteries meet the requirements of the development of modern electronic products. This new battery technology has many excellent features, such as high energy density, high operating voltage, good storage performance, and high cycle life. Lithium polymer batteries are widely used in 3C products, that is, consumer electronics, smart wearable devices, medical beauty products, and other industries.

We are located in Shenzhen, China, in the lithium polymer batteries field over 8 years. We can produce all kinds of pouch batteries based on customer demand. It can be fast charging, high energy density, stable charge & discharge curve. We produce what you need.

Lithium Battery Safety Test

lithium battery safety test

The safety performance test content of lithium battery includes overcharge, short circuit, drop, heating, vibration, extrusion, acupuncture, heavy object impact:

Overcharge test: fully charge the lithium battery, and then perform the overcharge test according to 3c overcharge. When the battery is overcharged, the voltage rises to a certain voltage and stabilizes for a period of time. When approaching a certain time, the battery voltage rises rapidly. When it rises to a certain limit , the high cap of the battery is broken, the voltage drops to ov, and the battery does not catch fire or explode.

Short-circuit test: Short-circuit the positive and negative electrodes of the battery with a wire with a resistance not greater than s0mQ after the battery is fully charged.

Needle penetration test: Place a fully charged battery on a flat surface and pierce the battery radially with a 3mm diameter steel needle. The test battery does not catch fire or explode.

Squeeze test: Put a fully charged battery on a flat surface, apply a 13+1KN squeeze force by the hydraulic cylinder, squeeze the battery flat with a steel rod with a diameter of 32mm, and stop squeezing once the squeeze pressure reaches the maximum, the battery will not catch fire or explode.

Heavy object impact test: After the battery is fully charged, place it on a flat surface, place a steel column with a diameter of 15.8mm vertically in the center of the battery, and freely drop a 9.1kg weight from a height of 610mm to the steel column above the battery On, the battery does not catch fire or explode.

What are the application of lithium polymer battery?

Because of the small atomic weight of lithium, batteries using lithium as anodes have high energy density. In addition, lithium batteries have the advantages of light weight, small size, long life, good performance, and no pollution, so they are very popular. In recent years, the application of lithium in the battery field has grown the fastest, rising from 7% in 1997 to 35% in 2013. The battery field has become the largest consumer of lithium in the world. Now, lithium batteries have been widely used in notebook computers, mobile phones, digital cameras, small electronic equipment, aerospace, electromechanical and military communications and other fields. With the continuous maturity of electric vehicle technology, lithium batteries will also be widely used in the automotive industry.

3.7V lithium battery applicant

lithium-ion polymer batteries are commonly used in a broad spectrum of applications, including:

  • Headlamp, LED headlight, head light, flashlight, mining light, outdoor light.
  • Neck massager, shoulder massager, smart back massage, muscle vibration machine.
  • CCTV camera, video camera, digital camera, surveillance system, analog camera.
  • POS machine, POS terminal, handheld payment system, payment terminal.
  • Bluetooth speaker, headphone, BT speaker, outdoor speaker, portable speaker
  • Electric breast pump, baby feeding device, breast feeding pump.

Lithium Polymer Battery Advantages

  • Advantage 1, good safety performance

    The polymer lithium battery adopts aluminum-plastic flexible packaging in structure, which is different from the metal shell of the liquid battery. In the event of a safety hazard, the liquid battery is easy to explode, while the polymer battery will only swell at most.

  • Advantage two, pretty thin

    Ordinary liquid lithium batteries use the method of customizing the casing first, and then plugging the positive and negative electrode materials. There is a technical bottleneck when the thickness is less than 3.6mm, but the polymer battery does not have this problem, and the thickness can be less than 1mm, which meets the needs of mobile phones direction.

  • Advantage three, lightweight

     The weight of the polymer battery is 40% lighter than that of the steel case lithium battery with the same capacity specification, and 20% lighter than that of the aluminum case battery.

  • Advantage 4. Large capacity

     The capacity of polymer lithium battery is 10~15% higher than that of steel shell battery of the same size, and 5~10% higher than that of aluminum shell battery. It has become the first choice for color screen mobile phones and MMS mobile phones.

lithium battery advantage
  • Advantage five, small internal resistance

     The internal resistance of the polymer battery is smaller than that of the general liquid battery. At present, the internal resistance of the domestic polymer battery can even be below 35mΩ, which greatly reduces the self-consumption of the battery and prolongs the standby time of the mobile phone. level with international standards.

  • Advantage six, the shape can be customized

     The polymer lithium battery can increase or decrease the thickness of the battery cell according to the needs of customers, and develop new battery cell models. The price is cheap and the mold opening cycle is short. battery capacity.

  • Advantage 7. Good discharge characteristics

      Polymer lithium batteries use colloidal electrolytes. Compared with liquid electrolytes, colloidal electrolytes have stable discharge characteristics and a higher discharge platform.

Our lithium polymer battery

  • Our lithium polymer battery conforms to Li-ion battery national standard GB31241/2014.
  • Each battery meets the demand of Rohs2.0 REACH requirements.
  • We will help you to get all the necessary certificates, some of the commonly known ones are listed below:
    UN 38.3
    IEC 62133
    Air & Sea Transportation Report
Supplier Assessment

Lithium Polymer Battery Manufacture Devices

Double roll film machine

Slitting Machine

Provide slitting function for lithium battery production.

film maker

Double roll film machine

Capable of flattening the two tabs of multiple lithium batteries at the same time.

film maker

Device for improving tab welding strength.

Shell punching equipment

Injection Artwork

The choice of electrolyte has a great influence on the performance of lithium-ion batteries.

high temperature formation

Shell Punching Equipment

Mainly plays the role of protecting the internal battery.

High Temperature Formation

Stabilizes the properties and composition of the SEI film formed after the initial charge.

Need Any Customized Lithium Polymer Battery?

You will receive the charge & discharge curve

  • 11.1V Polymer Battery Pack, It is a 0.5C rate charge & 0.5C discharge curve test as a sample for your review.

Time - voltage & current

Capacity - voltage

Time - capacity & specific capacity

Cycle number-charge capacity & discharge capacity & charge specific capacity & discharge specific capacity

Product & Factory Certificates

  • All batteries are require related certification apart from lab testing, such as voltage, current measure, and each countries have different certificate demand.
  • Clients are welcome to have any 3rd party certification company verify our batteries or the factory documents.
  • We have been working with UL, TUV, SGS certication lab. All batteries approved by UL1642, UN38.3, IEC62133, PSE, KC, CB, MSDS certificate or report.
battery certificate

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What you shall consdier

  • Nominal Voltage
    The nominal voltage, charge voltage, cut-off voltage.
  • Rated Capacity
    The operational time of the whole device.
  • Charge & discharge current
    Please consider the work & max current of charge & discharge.
  • Work temperature
    Generally, it is 0~45 degrees for the charge; -20~60 degrees for discharge.

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