Have “ultimate energy” and “green energy” of the lithium-ion laptop battery  , since the 1990s has come from electronic products in button batteries, cell phones, DC types of digital products lithium PCGA-BP71 battery for electric vehicles to the Battery power, the increasingly widely used in the production and people’s lives. Compared with other batteries, lithium-ion battery either from the size, weight, or the performance, have great advantages.

To use the capacity at a reasonable voltage range of lithium laptop battery , a one-sided pursuit of large capacity, ultra-high voltage is wrong. First of all, go through anything from simple to complex one, from easy to difficult process, and like the same flammable gas, lighter to ensure that effective security is relatively easy, like an effective vehicle to ensure the safety of the tank will be much more difficult, Is still not completely solved when the car crash caught fire and exploded. In a limited volume of accumulation, the more energy the more bad management, currently stars Suzhou Heng ensure that only the largest battery 48V10Ah combination of security. Second, the higher the voltage, the greater the capacity to protect the circuit and the circuit balanced difficulty and the greater the failure rate, the Suzhou Heng stars do not advocate, does not support 48V10Ah beyond the combination offru 92p1141 battery .

Depends on the safety of lithium batteries certification test

I, UL Certification

Today, most of the world’s countries and regions, involving security, health and environmental protection projects, the requirements in the market must be made before the safety certification. UL has become a symbol of the world’s leading security certification mark one.

Testing standards are as follows:

1, Shell

Li-ion HSTNN-UB02  battery shell should have enough strength and stiffness sufficient to resist the pressure of the abuse and avoid giving rise to fire. User-replaceable lithium battery and should have enough strength not to hurt people.

2, electrolyte

Users can replace the M6091  battery should not contain pressure steam or smoke damage the eyes of toxic liquid and vapor, or the battery case in normal laboratory conditions (temperature of 23 ℃), by the impact of the leakage of liquid should be less than 5ml.

3, the use of

Lithium Apple battery   should be used to take measures to prevent abnormal charge current, battery of tests there an acceptable charge current Ic, in abnormal conditions, the end product should be used in protective measures.

4, leakage

Leakage or loss of quality standards for leakage,IBM battery  or a battery of quality loss does not exceed the maximum 1g0.5%, 1 ~ 5g0.2%> 5g0.1%.

5, mechanical test

(1) squeeze: a 32mm diameter of the hydraulic piston of the two Asus laptop battery  of surface-to exert pressure 13KN (pressure 17.2Mpa), when the maximum pressure relief. Samples of the fire is not no explosion.

(2) impact: 15.8mm diameter of the rods on the sample, so that the weight of 9.1Kg weight from the high degree of 610mm fell on the sample. Samples of the fire is not no explosion.

(3) Acceleration: pavilion dv1000 battery  on a fixed fixture, respectively, each of the three along the vertical direction to speed up (to speed up: 3ms with a minimum initial acceleration should reach an average of 75g, the peak acceleration in the range of 125-175g). Test temperature of 20 ± 5 ℃. Samples should not fire, no explosions, no leakage other samples.

(4) Vibration: simple 08K8193 battery to withstand vibration tuner (3 each other along the vertical direction), the frequency of vibration in the range of 10-55Hz to 1Hz/min the rate of change in the 90-100min resume back to the amplitude of 0.8mm. Samples should not fire, no explosions, no leakage.

(5) thermal shock: the samples in a natural convection or forced convection heating in the oven, the oven temperature to 5 ± 2 ℃ / min rate of warming to 150 ℃, and keep after 10min. Samples should not fire, no explosion.

(6) thermal cycle test: Battery test kept in indoor and bear the following cycle:

① 30min to heat up within 70 ± 3 ℃, insulation 4h.

② 30min to cool down within 20 ± 3 ℃, insulation 2h.

③ 30min to heat up within 40 ± 3 ℃, insulation 4h.

④ 30min to cool down within 20 ± 3 ℃.

⑤ Repeat cycle 9.

⑥ 10 cycles, battery to be found to place 7 days. Samples should not fire, no explosions, no leakage.

(7) high-altitude simulation: cell samples in the absolute pressure to 11.6Kpa (1.68psi), 20 ± 3 ℃ (68 ± 5 ° F) under the conditions of storage of 6 hours. Sample battery is not an explosion or fire, there can be perforated or leaking.

6, charge-discharge test

(1) charge and discharge cycle: Test the temperature 25 ℃, batteries according to the manufacturer’s request for charge-discharge cycle to cycle with a capacity of the initial nominal capacity of 25% or 90 days after the termination of the cycle in a row. Samples should not be any security incident.

(2) short-circuit test: less than 0.1Ω resistance of copper cathode carried out on the  latitude c600 battery  is short, the battery discharge until a fire or explosion, or until the battery completely discharge, re-shell temperature down to room temperature to stop (60 tests at room temperature ± 2 ℃ conditions). Samples should not fire, no explosion, or a battery shell casing temperature does not exceed 150 ℃.

(3) non-normal charge test: the normal discharge end to 3 times the normal charge current the current charge. No fire, no explosion.

(4) mandatory discharge test: The  PCGA-BP2NY battery discharge completely at room temperature with a certain number of models with the new batteries in series, the formation of the battery pack for short-circuit test. Samples should not fire, no explosion.

(5) Charge-off: the  08K8198 battery at full power conditions to 3C, 10V constant current, constant voltage battery charger for when the current reach 100mA, charging voltage to 48 hours.

7, logo

Battery manufacturers should identify the name, trade names or trademarks, style setting.  A1078 battery should be marking Warning, and a corresponding description.

Second, ExtraEnergy standard

ExtraEnergy certification is a non-profit organization headquartered in Germany, Canal Tanzania, is the main focus of the world’s light electric vehicle neutrality, and to provide value-added services, which related to the safety of lithium batteries is very strict testing, strict, European customers get most of the recognition.

Standard tests in the following table.

Test test test before the state security standards

An abnormal charge at room temperature and air power, the assembly factory. Removal of circuit protection and management of the circuit, in the battery is fully charged, the PCGA-BP2R  battery pack to 10A current charge-off to 1.5 times the nominal voltage. No fire, no explosion; test battery shell temperature is less than 120 ℃; Muzhuo experiment is not burning coke; the release of toxic gas.

2 short-circuit

At room temperature, the original charger to charge full electricity, the assembly factory.

Removal of circuit protection and management of the circuit, in the battery is fully charged, the battery is a direct negative short-circuit. No fire, no explosion; test battery shell temperature is less than 120 ℃; Muzhuo experiment is not burning coke; the release of toxic gas.

3 heavy pressure at room temperature, the original charger to charge full electricity, the assembly factory. With a diameter of 15 centimeters of steel rollers, 10 tons of pressure on the battery pack for extrusion. No fire, no explosion;   40Y6797 battery overflow of gas, liquid and solid non-toxic.

Third, CE certification

In recent years, the European Economic Area (the European Union, the European Free Trade Association member countries, except Switzerland) market in commodities, CE mark certification of the use of more and more, add the CE mark certification that its products comply with safety, Health, environmental and consumer protection, such as a series of European directives to the expression.