Lithium ion Polymer Battery Manufacturers

HLC Battery is a lithium polymer battery manufacturer located in Shenzhen, China, established in 2014. Our team has over 8 years of experience in the power industry and understands the unique needs of our customers. From polymer batteries to total battery solutions, we will meet your needs in the most efficient way.

We manufacture lipo cells and Li-ion battery packs for our customers’ electronic equipment, providing a full range of services from designing and producing batteries to battery packaging and shipping. Lithium polymer batteries have been used in LED lights, GPS, Bluetooth devices, digital cameras, personal care devices, and more. HLC battery can also provide OEM&ODM service for lithium-polymer battery.

lithium ion polymer battery

Best Selling LiPo Battery

The self-discharge of polymer batteries is small, and the capacity loss of polymer batteries is also small after being placed for a long time. The shape of polymer batteries can be customized, and manufacturers are not limited to standard shapes and can be economically made into suitable sizes. Polymer batteries can increase or decrease the thickness of the battery cells according to the needs of customers, and develop new battery cell models.

The polymer battery has good discharge characteristics. The polymer battery uses a colloidal electrolyte. Compared with the liquid electrolyte, the colloidal electrolyte has a stable discharge characteristic and a higher discharge platform.

Lithium Battery Process Work Flow

We are a professional lithium battery factory in China. Now we briefly introduce how to produce lithium batteries. It starts from cathode & anode mixing, coating, baking, calendering, automatic slitting & cutting, winding, top & side sealing, electrolyte injection, pressing formation, forming, capacity grading, OCV1 & OVC2, cell to PCB, insulation and shipping. Welcome to contact and ask for the workflow table list.

Lithium Ion & Lithium Polymer Battery Pack Advantages

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 bulge at most.


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. The polymer battery does not have this problem, and the thickness can be less than 1mm, which meets the needs of current mobile phones. direction.


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.

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.

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.

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.

Good discharge characteristics

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

It is the advantages of polymer lithium batteries in safety performance, thickness, weight, capacity, internal resistance, shape, and discharge characteristics that enable lithium batteries to be widely used in drones, remote control models and other fields, and continue to expand the application field . It is believed that polymer lithium batteries can be used more in all aspects of our lives in the future.

Lithium Ion & Lithium Polymer Battery Pack Applications

lithium polymer battery application

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

  • Digital products

    Telephone watches, mobile phones, beauty salon products, electric toothbrushes, dust masks, massagers, water replenishers, cameras, video cameras, various remote controls, beard-tipping knives, pistol drills, children’s toys, etc.

  • Industrial testing and measuring instruments and communication instruments

    Flaw detectors, security equipment, gas detectors, optical fiber fusion splicers, optical fiber power cable testers, infrared testers, communication testers, etc.

  • Medical equipment

    ECG monitoring equipment, B ultrasound machine, ventilator, anesthesia machine, physiotherapy lift, physiotherapy and rehabilitation equipment, etc.

  • Satellite positioning and handheld mobile terminal

    GPS, Beidou satellite positioning measurement system, handheld data terminal, Internet of things equipment, micro-printer, walkie-talkie, electronic label, electronic wallet, electronic payment equipment, POS machine, etc.

  • Power tool LED torch and others

    Electric tools, electric toys, emergency light power supply, military communication equipment, electric bicycles, etc., LED miner’s lamp, LED headlight, LED searchlight

Lithium ion battery vs lithium polymer battery which is better

The positive and negative electrode materials used in polymer lithium-ion batteries are the same as liquid lithium ions. The positive electrode materials are divided into lithium cobalt oxide, lithium manganate, ternary materials and lithium iron phosphate materials. The negative electrode is graphite, and the working principle of the battery is also basic consistent.

The important difference between them is the difference in the electrolyte. Liquid lithium-ion batteries use liquid electrolytes, while polymer lithium-ion batteries are replaced by solid polymer electrolytes. This polymer can be either dry or colloidal. Some use polymer gel electrolytes.

Lithium polymer battery or lithium ion battery which is better

Lithium polymer batteries are good.

Lithium polymer battery is an upgraded product of lithium ion battery. Compared with the popular lithium-ion battery, it has the advantages of large capacity, small size (thin), and safety (no explosion). However, because the replacement of the entire industry chain takes time, its cost (cost) is still relatively high, and it is only used in high-end digital products (ultra-thin notebook computers, etc.).

Lithium polymer battery or lithium ion battery which is better

What are the chemicals of a lithium ion polymer battery

The lithium battery consists of the following parts:

Positive electrode: LiCoO2 lithium cobalt dioxide or LiMn2O4 lithium dimanganese tetroxide
Separator: Conductive electrolyte polymers (eg: polyethylene glycol, PEO)
Negative Electrode: Lithium or Lithium Carbon Intercalation (Chemical) Compound

Typical reaction: (discharge)
Negative: (Carbon-Lix) → C +xLi+xe
Diaphragm: Li conductive
Positive electrode: Li1−xCoO2+xLi+xe→LiCoO2
Overall Reaction: (Carbon-xLi+xe) + Li1-xCoO2→ LiCoO2+ Carbon

lithium battery component

What are lithium ion polymer battery advantages

High energy density: It varies according to different electrode materials. Calculated by mass, it can reach 150-200Wh/kg (540-720kJ/kg); calculated by volume, it can reach 250-530Wh/L (0.9-1.9kJ/cm3).

High open circuit voltage: It varies with different electrode materials, up to 3.3 ~ 4.2V.

High output power: it varies with different electrode materials, up to 300-1500W/kg (@20 seconds).

No memory effect: The lithium polymer battery has no memory effect, the battery can be charged and discharged at any time without being discharged, and it is easy to use and maintain.

Low self-discharge: <5%~10%/month. Due to the built-in monitoring circuit of the intelligent lithium-ion battery, the operating current of this monitoring circuit is even higher than the self-discharge current.

Wide operating temperature range: it can work normally between -20℃~60℃.

Fast charging and discharging speed

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.
11.1V battery time & voltage current curve

Time - voltage & current

11.1V battery charge & discharge curve

Capacity - voltage

11.1V voltage & current curve

Time - capacity & specific capacity

11.1V charge & discharge curve

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

3.7V Lithium Polymer Battery Specification

803040 3.7V 800mAh rechargeable battery

402035 3.7V 250mAh rechargeable battery

103048 3.7V 1500mAh rechargeable battery

Li-polymer Battery Certificates

Transportation: Lithium primary batteries and lithium ion batteries are required to comply with UN38.3 certification for the transportation of dangerous goods.

China: The domestic transportation of lithium batteries meets the national standard of GB 21966, and the products need to be certified by CQC.

United States: Lithium batteries are exported to the United States, and the certification options include UL, cTUVus, ETL, NRTL certification.

EU: The export of lithium batteries to the EU requires CE certification, EN/IEC test report.

CB member states: Lithium batteries can apply for CB certification and meet the requirements of IEC61960 regulations.

Japan: Lithium batteries exported to Japan require PSE certification.

India: Lithium batteries need to apply for BIS certification, in line with IS 16046.

Russia: EAC certification, corresponding to standard IEC 62133.

South Korea: KC certification is required to export lithium batteries to South Korea, which meets the requirements of KC 62133 regulations.

Thailand: The export of lithium batteries to Thailand requires TISI certification and meets the requirements of TIS 2217-2548.

Vietnam: Exporting to Vietnam requires MIC certification and meets the requirements of regulations QCVN-101.

Australia: Export to Australia requires RCM certification.

Brazil: Mobile phone lithium batteries need to apply for ANATEL certification.

Saudi Arabia: It is necessary to meet the corresponding IEC standards for export to Saudi Arabia and apply for SASO certification.

Mexico: Meet the requirements of regulations NOM-024-SCFI and apply for NOM certification.

battery certificate

Write for li-polymer battery solution

Why choose us, HlcBattery?

  • Safety & Reliability
    All Battery cells will pass rigorous testing. All Battery Packs are Certified and are compliant with regulatory and safety requirements. 
  • Sampling Leadtime
    We will deliver out samples within 7~10 days.
  • Customer support
    Quick turn-around on battery assemblies(30-35 Days). 24*7 services are available.

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