Introduction of related parameters and advantages and disadvantages of lithium battery

With smart-phones becoming the most important mobile interconnection terminals, more and more new technologies have been applied to the smart-phone field, which has greatly improved the user's operating experience. Smart-phones have become the mainstream of the mobile phone market instead of traditional functional mobile phones. Compared with ordinary mobile phones, smart phones have higher hardware configurations and more operating functions. Their frequency of use is also higher than that of traditional mobile phones. Multi-core, large screen, and thin type have become the development trends of smart phones. This means that smart-phones also consume more power, but the space left for batteries is not increased, and the battery capacity is required to grow and the shape becomes thinner. Thin, high-capacity and safer polymer batteries are more popular with smart-phones. With polymer batteries in performance is not much different, but the cost of soft packaging lithium ion batteries with significant advantages has become the first choice, the market development space is huge.

Lithium battery advantages

1. Good Safety Performance

Soft pack batteries do not explode like steel shell aluminum shell cores.

2. Light weight

The weight of the flexible battery is 40 % lighter than that of the same capacity lithium steel shell and 20 % lighter than the aluminum shell battery.

3. Large capacity

Soft pack batteries have a capacity of 10 to 15 % higher than steel shell batteries of the same size and 5 to 10 % higher than aluminum shell batteries.

4. Small internal resistance

The internal resistance of the soft-pack battery is smaller than that of the lithium battery. At present, the internal resistance of the domestic soft-pack battery core can be below 35mΩ, which greatly reduces the battery's self-consumption.

5. Flexible design

The shape of the soft pack battery can be customized according to the customer's needs and a new type of core can be developed.

Deficiencies of flexible lithium batteries

The existing soft pack battery core models are few and can not meet the market demand;

Developing new models is expensive.

Advantages of Carbon Aluminum Foil in lithium battery Application

1. Inhibiting battery polarization, reducing thermal effects, and improving multiplier performance;

2. Reduce the internal resistance of the battery and significantly reduce the dynamic internal resistance increase of the cycle process;

3. Improve consistency and increase the cycle life of batteries;

4. To increase the adhesion of active substances to fluid-collecting fluids and reduce the manufacturing cost of polar tablets;

5. Protect the set of fluids from corrosion by the electrolyte;

6. Improve the processing performance of lithium iron phosphate and lithium titanate materials.

Coating double-sided thickness: A 4 to 6 μm, B 2 to 3 μm.

Conductive coating

The surface treatment of the conductive substrate of the battery using functional coatings is a breakthrough technological innovation. Carbon foil / copper foil is a scattered nano-conductive graphite and carbon coated particle, evenly and delicately coated on aluminum foil / copper foil. It can provide excellent static electrical conductivity and collect micro-currents of active substances, which can greatly reduce the contact resistance between positive-negative materials and aggregates, and can increase the adhesion between the two, which can reduce the use of binders., In turn, the overall performance of the battery has been significantly improved. There are two types of coating: water quality(water agent system) and oil quality(organic solvent system).

Performance advantage

Performance advantage of coated aluminum foil / copper foil

1. Significantly improve the consistency of battery use and significantly reduce the cost of cell composition. Such as:

The dynamic internal resistance increase of the power core is obviously reduced.

:: Improved differential consistency of batteries;

Extension of battery life;

Reduce battery cost significantly.

Lithium battery parameters

Project No.: 09AQ050-01

Combination: PL08340-1S1P

Nominal voltage: 3.7 V

Operating voltage: 2.4 ~ 4.2 V

Nominal capacity: 1250mAh

Standard electrical discharge continuous current: 0.2 C

Maximum continuous discharge current: 0.5 C

Operating temperature: Charging: 0 ~ 45 °C

Discharge: -20 ~ 60 °C

Product Size: MAX9 .5 * 35 * 52 mm

Internal resistance of finished product: ≤ 150mΩ

Lead type: National Standard Line UL1007/24 #, Line length 55mm

Protection parameter: overcharged protection voltage / 4.325 ± 0.025 V per string

Over discharge protection voltage 2.5 ± 0.05 V

Overflow value: 2 ~ 4A

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