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.
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.
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.
lithium-ion polymer batteries are commonly used in a broad spectrum of applications, including:
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.
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.
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.
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.
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 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.
Polymer lithium batteries use colloidal electrolytes. Compared with liquid electrolytes, colloidal electrolytes have stable discharge characteristics and a higher discharge platform.
Provide slitting function for lithium battery production.
Capable of flattening the two tabs of multiple lithium batteries at the same time.
Device for improving tab welding strength.
The choice of electrolyte has a great influence on the performance of lithium-ion batteries.
Mainly plays the role of protecting the internal battery.
Stabilizes the properties and composition of the SEI film formed after the initial charge.
We will contact you within 1 working day, please pay attention to the email with the suffix “@hlcbattery.com”.
