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Microsoft word - 063048 li-polymer.doc

Prepared/Date Auditing/Date Approved/Date UNIONFORTUNE
Edition No.
1 Scope
This product specification describes UNIONFORTUNE polymer lithium-ion battery. Please using the test methods that recommend in this specification. If you have any opinions or advices about the test items and
methods, please contact us. Please read the cautions recommended in the specifications first, take the credibility
measure of the cell’s using.
2 Product Type, Model and Dimension
2.1 Type:Polymer lithium-ion battery 2.2 Model: 063048 2.3 Cell Dimension(Max, Thickness×Width×Length,mm3): 6×30×48 Pack Dimension(Max, Thickness×Width×Length,mm3): None 3 Specification
4 General Performance
Definition of Standard charging method:At 20±5℃,charging the cell initially with constant
current 0.2C5A till voltage 4.2V, then with constant voltage 4.2V till current declines to 0.05C5A. After standard charging, laying the battery 0.5h, then discharging at 0.2C5A to voltage 2.75V, recording the discharging time. After standard charging, laying the battery 0.5h, then discharging at 1C5A to voltage 2.75V, recording the discharging time. Constant current 1C5A charge to 4.2V, then constant voltage charge discharge to 2.75V,stay 5min. Repeat above steps till continuously discharging time less than 36min. 20 ± 5 ℃ , After standard charging, laying the battery 28days, 5A to voltage 2.75V, recording the discharging UNIONFORTUNE
Edition No.
5 Environment Performance
After standard charging, laying the battery 4h at 60℃, After standard charging, laying the battery 4h at 5A, then discharging at 0.2C5A to voltage 2.75V, After standard charging, laying the battery 48h at 40±2 After standard charging, battery stored at -20℃ for 2 hours, then stored at 50℃ for 2 hours. Repeat 10 times. 6 Mechanical Performance
After standard charging, put battery on the vibration table. 30 min experiment from X,Y,Z axis. Scan rate: 1 oct/min; Frequency 10-30Hz, Swing 0.38mm; Frequency appearance. After vibration test, batteries were laying on the vibration table about X, Y, Z axis. Max frequency acceleration: 100m/s2; collision times per minutes: 40~80; frequency keeping time 16ms; all collision times 1000±10. Random drop the battery from 10m height onto concrete 7 Safety Test
Test conditions:The following tests must be measured at flowing air and safety protection conditions. All
batteries must standard charge and lay 24h. At 20±5℃, charging batteries with constant current 5A to voltage 4.8V, then with constant voltage 4.8V till current decline to 0. Stop test till batteries’ temperature 10℃ lower than max temperature. At 20 ± 5 ℃ , discharge battery with 0.2C At 20±5℃, connect batteries’ anode and cathode by wire which impedance less than 50mΩ, keep 6h. At 20±5℃, put the battery in two parallel steal broad, Put the battery in the oven. The temperature of the oven shock is to be raised at 5±1℃ per minute to a temperature of UNIONFORTUNE
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1. Cautions of batteries’ operation
The batteries must be careful of proceed the operation for it’s soft package. ⒈ Aluminum packing materials The aluminum packing material was easily damaged by the sharp edge part, such as nickel-tabs. ⑴ forbid to use the sharp part touching the battery; ⑵ should cleaning working condition, avoiding the sharp edge part existence; ⑶ forbid to pierce the battery with nail and other sharp items; ⑷ the battery was forbidden with metal, such as necklace, hairpin etc in transportation and Sealing edge is very easily damaged and don’t bend it. The Al interlayer of package has good electric performance. It’s forbidden to connect with exterior component for preventing short-circuits. The folding edge is formed in batteries’ processes and passed all hermetic tests, don’t open or deform it. The Al interlayer of package has good electric performance. It’s forbidden to connect with exterior component for preventing short-circuits. ⒋Tabs The batteries’ tabs are not so stubborn especially for aluminum tabs. Don’t bend tabs. Don’t fall, hit, bent the batteries’ body. Short-circuit is strictly prohibited. It should damage batteries badly. 2. Standard Test Environment for polymer lithium-ion batteries
Environment temperature: 20±5℃ Humidity: 45-85% 3. Cautions of charge & discharge
Charging current should be lower than values that recommend below. Higher current and voltage charging may cause damage to cell electrical, mechanical, safety performance and could lead heat generation or leakage. ⑴ Batteries charger should charging with constant current and constant voltage mode; ⑵ Charging current should be lower than (or equal to )1C5A; ⑶ Temperature 0~40℃ is preferred when charging; ⑷ Charging voltage must be lower than 4.25V. UNIONFORTUNE
Edition No.
⒉ discharge ⑴ Discharging current must be lower than (or equal to )2C5A; ⑵ Temperature 0~60℃ is preferred when discharging; ⑶ Discharging voltage must not be lower than 2.75V. ⒊ over-discharge It should be noted that the cell would be at an over-discharge state by its self-discharge. In order to prevent over-discharge, the cell shall be charged periodically to keeping voltage between 3.6-3.9V. Over-discharge may cause loss of cell performance. It should be noted that the cell would not discharge till voltage lower than 2.5V. 4.Storage of polymer lithium-ion batteries
The environment of long-time storage: Temperature: 20±5℃; Humidity: 45-85%; Batteries were 40~60% charged. 5.Transportation of polymer lithium-ion batteries
The batteries should transportation with 10~50% charged states. 6.Others
Please note cautions below to prevent cells’ leakage, heat generation and explosion. Prohibition of cells immersion into liquid such as water or seawater; Prohibition of using damaged cells. The cells with a smell of electrolyte or leakage must be placed away In case of electrolyte leakage contact with skin, eye, physicians shall flush the electrolyte immediately with fresh water and medical advise is to be sought. 9. Notice of Designing Battery Pack
Battery pack should have sufficient strength and battery should be protected from mechanical shock. No sharp edge components should be inside the pack contain the battery. The overcharge threshold voltage should not be exceed 4.25V. The over-discharge threshold voltage should not be lower than 2.75V. The PCM should have short protection function built inside. Ultrasonic welding or spot welding is recommended to connect battery with PCM or other parts. If apply manual solder method to connect tab with PCM, the notice below is very important to ensure battery performance. ⑴ The electric iron should be temperature controlled and ESD safe; ⑵ Soldering temperature should not exceed 350℃; ⑶ Soldering time should not be longer than 3s, keep battery tab cold down before next soldering; ⑷ Soldering times should not exceed 5 times; ⑸ Directly heat cell body is strictly prohibited, battery may be damaged by heat above approx. 100℃. UNIONFORTUNE
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The battery should be fixed to the battery pack by its large surface area. No cell movement in the battery The cell replacement should be done by professional people. Prohibit short-circuit between cells’ Al package and exterior component.


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Microsoft word - 4 vng evaluation.docx

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