SAEHAN ENERTECH, INC.

Transcription

1 SAEHAN ENERTECH, INC. ENERTECH

2 23. Patent List Subject 1. Device for applying primer to manufacturing Lithium Polymer Battery Application Application Number Date Lithium Polymer Battery Lithium Ion Polymer Battery Method for manufacturing electrode of Lithium Polymer Battery and Lithium Polymer Battery using the electrode made by the method 5. Composite of electrolyte for Lithium Polymer Battery Method for manufacturing Lithium Polymer Battery Electrolyte for Lithium Secondary Rechargeable Battery Electrolyte for Lithium Ion Polymer Battery Method for manufacturing Lithium Ion Polymer Secondary Rechargeable Battery Lithium Secondary Polymer Battery Method for manufacturing Lithium Ion Polymer Battery Inventor Pete Han & Pete Han & Y.J.Kim & Y.J.Kim & 7 Persons J.H.Lee & H.S.Lee & 7 Persons H.S.Lee & H.S.Lee & S.P.Kim & S.P.Kim & Pete Han & Remark Registered Registered Registered Applied Applied Applied Applied Applied Applied Applied Applied 11/37

3 24. Comparison on ALB 241. Cellular Phone Polymer Description SAEHAN Samsung SDI SONY Model No. SPB ICF UP Normal Capacity (mah) Nominal Voltage (V) Capacity at 0.5C(mAh) Capacity at 1C (mah) Energy Density Volume (Wh/L) Weight (Wh/kg) Thickness Dimensions (mm) Width Length Weight (g) Internal Impedance (mω) C Cycle Performance 12/37

4 25. Approval of SAMSUNG on Polymer 251. Certifications for Rechargeable Lithium Cell Test item SEC V6.0 IEC IEC UL1642 Discharge (normal) Discharge(20 ) Performance High rate chg./discharge Storage recovery Pulse discharge Cycle life Overcharge Electrical Forced discharge Safety ExternalShort Abnormal Charge Penetration Impact Mechanical Vibration Safety Drop Crush Swelling Environmenta Humidity l Thermal shock Safety Heating Altitude simulation SEC v6.0 : Samsung Electronics Li ion cell specification ver. 6.0 JIS : Japanese Industrial Standards 13/37 UL2054 JIS C8711

5 Nail penetration Penetration completely center of the fully charged cell with 5mm diameter nail at the velocity of 40mm/sec No fire, and no explosion NE, NF Crush Crush with force of 13kN. (Crushed side is longitudinal and narrow axis.) No fire, and no explosion NE, NF 14/37

6 Impact test Place 5/8 inch (15.8mm) diameter bar across the center of cell. (Impacted side is longitudinal and wide axis.) Drop 20pound(9.1kg) weight from a height of 24±1inch (610±25mm) onto the cell. No fire, and no explosion NE, NF Heating test Raise at a rate of 5±2 per minute to 150±2. Stand for 10minutes at 150±2. No fire, and no explosion NE, NF 15/37

7 Overcharge Test To charge the standard charged cell with 5V and 1A at 25 for 2.5 hours. No fire, and no explosion NE, NF Reverse Charge Test Each test sample battery is to be subjected to a charging current of three times the current I c, specified by the manufacturer by connecting it in opposition to a DCpower supply. *test time : t c = 2.5C/3I c No fire, and no explosion NE, NF 16/37

8 ExternalShort Test Short (+), () terminals for 2.5hours with a maximum resistance load of 100mΩ at 60. No fire, and no explosion NE, NF 17/37

9 Humidity Test 1 SEC charge at 23±3. 2 Measure thickness after stand for 10days at 50, 95%RH. 3 SEC Discharge at 23±3. 4 Measure the capacity during SEC discharge, after SEC charge at 23±3. The change ratio of cell thickness 5% No. Before Thickness (mm) After Ratio(%) Before Capacity (mah) After Ratio(%) /37

10 Thermal Shock Test 1 SEC charge at 23±3. 2 Stand for 2 hours at 40, and then stand for 2 hours at 85 3 Repeat 20 times. 4 Inspect appearance, and measure thickness. 5 SEC discharge at 23±3. 6 Measure the capacity during SEC discharge, after SEC charge at 23±3. The change ratio of cell thickness 10% No. Before Thickness (mm) After Ratio(%) Before Capacity(mAh) After Ratio(%) Appear ance O.K O.K O.K O.K O.K 19/37

11 Drop test 1 SEC charge at 23±3. 2 Drop conditions Height : 1.5M Floor : steel plate (T:10mm) Direction : 2 Cycle each side 1 time random side 3 times (total 15 times) 3 Inspect appearance, and measure voltage and IR. No. Before Voltage (V) After Ratio(%) Before IR (mω) After Ratio(%) Appearance 20/37

12 Abnormal Charge Test 1 SEC charge at 23±3. 2 Abnormal charge conditions Temp : 23±3 Voltage : 4.25V, 4.275V, 4.30V Current : constant current of 700 ma Cut off Condition : Time (168 hrs) 3 Inspect appearance, and measure thickness The change ratio of cell thickness 5% No. T1 (mm) 4.25V T2 (mm) Ratio (%) T1 (mm) 4.275V T2 (mm) Ratio (%) T1 (mm) 4.30V T2 (mm) Ratio (%) ( T1 Before Thickness, T2 After Thickness) 21/37

13 28. Manufacturing Process (1) Mixing Viscosity Input (mass ratio) Solidity Ratio Coating Areal Density & Thickness Deviation of the upper and lower plate pole (both sides) Slitting Width Pressing Thickness Density of Area Punching Size Cleaning Vacuum Dry Moisture Appearance Stacking Mass Insulation Impedance 27/37

14 28. Manufacturing Process (2) Xray Distance between cathode & anode and distance between anode and separator TapWelding Welding Intensity & location Insulation Impedance Taping Taping Location Al Pouch forming Size Sealing Sealing Thickness & Distance Insulation Impedance Electrolyte Filling The amount of electrolyte injected Vacuum Sealing High temp. Aging N/A 28/37

15 28. Manufacturing Process (3) PreFormation OCV IR Normal Temp. Aging N/A Degassing Sealing Distance Sealing Thickness Folding Size Lot no. Printing Main Formation OCV IR High Temp. Aging N/A Normal Temp. Aging N/A 29/37

16 28. Manufacturing Process (4) Grading Capacity OCV IR Normal Temp. Aging N/A Final Inspection Size, Appearance OCV IR Leak Vacuum Test Packing 30/37