High Temperature Series Nickel-metal Hydride Vht F

Transcript

High Temperature Series Nickel-Metal Hydride VHT F Saft Ni-MH VHT F has been specially designed to fit the power back-up and renewable energy applications (as photovoltaic) requirements. The VHT allows to operate until + 55°C and offer an extended life time (4 years at an average temperature of + 50°C and until 15 years at + 20°C depending on usage profile). The VHT is designed to accept low current permanent charge (down to C/100) or intermittent charge at very high temperature (up to + 60°C). It can also accept very large numbers of cycles and can be fast charged until 3A (charge termination required). To meet customers’ requirements, Saft provides custom-designed and standardized battery packs. For your battery design and system needs, please contact Saft’s engineers. Applications • Telecommunication back-up systems • Emergency lighting • Security devices • Renewable energy storage • Professional electronics Main advantages • Excellent charge efficiency at high temperatures • Permanent charge at low current (C/100) • Intermittent charge • Long life duration • High number of discharge cycles • Superior storage ability Technology • Foam positive electrode • Metal-hydride negative electrode Electrical characteristics Nominal voltage (V) 1.2 Typical capacity (mAh)* 11000 IEC minimum capacity (mAh)* 10000 IEC designation HRMT 33/91 Impedance at 1000 Hz (mΩ) 5 * Charge 16 h at C/10, discharge at C/5. Dimensions Diameter (mm) 32.15 ± 0.10 Height (mm) 88.8 ± 0.4 Top projection (mm) 1.4 ± 0.4 Top flat area diameter (mm) 5.6 Weight (g) 215 Dimensions are given for bare cells. Charge conditions Rate Time (h) Fast * 3 Permanent Temp. (°C) Charge current (mA) - 30 to + 60 3000 - 30 to + 60 100 to 500 * Charge termination required. Maximum discharge current Continuous (A) at + 20°C Peak (A) at + 20°C* * Peak duration: 0.3 second - final discharge voltage 0.65 volt/cell. 30 130 Temperature range in discharge - 30°C to + 60°C Charge 24h at C/20 at different temperatures 1.8 1.7 Storage Recommended: + 5°C to + 25°C Relative humidity: 65 ± 5 % Voltage (V) 1.6 Cold temperature voltage clamp at 1,55V 1.5 1.4 1.3 1.2 Typical performances For graph shown, C is the IEC5 capacity. - 30°C 1.1 - 20°C 0°C + 25°C + 40°C + 55°C + 70°C 1 0 5 10 15 20 25 Time (h) Discharge at C/10 at different temperatures after charge at C/10 at different temperatures 1.6 Dimensions in mm. - 30°C - 20°C - 10°C 0°C + 20°C + 50°C + 70°C Voltage (V) 1.4 1.2 1.0 0.8 0.6 0 2 4 6 8 10 12 Capacity (Ah) Charge at C/10 to “%input” and discharge at C/100 to 1V/cell Efficiency (%) 100 90 80 70 - 20°C 0°C + 20°C + 40°C + 60°C 60 20 40 60 80 100 Charge input (%) Life duration vs. depth of discharge at different battery temperatures 100 90 + 20°C + 30°C + 40°C 80 DOD (%) 70 60 50 40 30 20 10 Life model prediction based on one cycle / day and uses average battery temperature over life time 0 2 4 6 8 10 Lifetime (years) Saft Specialty Battery Group 12, rue Sadi Carnot 93170 Bagnolet - France Tel.: +33 (0)1 49 93 19 18 Fax: +33 (0)1 49 93 19 68 Email: [email protected] www.saftbatteries.com DOC N°11112-2-0110 Data in this document are subject to change without notice and become contractual only after written confirmation by Saft. Photo credits: Saft Published by the Communication Department Saft S.A. Stock capital 31.944.000 RCS Bobigny B 383 703 873 Designed by Soyouzgraphic 12 14 16