Recomendados
Recomendados
Mais conteĂșdo relacionado
Semelhante a electricvehiclebatteries-150130163418-conversion-gate02.pptx
Semelhante a electricvehiclebatteries-150130163418-conversion-gate02.pptx (20)
Mais de LEGENDARYTECHNICAL
Mais de LEGENDARYTECHNICAL (12)
Ăltimo
Ăltimo (20)
electricvehiclebatteries-150130163418-conversion-gate02.pptx
- 1. Type of battery used in commercialized electric vehicles Name :- Gaurang Atul Thakare Roll no.:- TYMEB136 Div :- Mechanical (B) HONORS COURSE BATTERY TECHNOLOGY IE 1 Activity
- 2. Introduction âą What is EV Battery? âą Battery History âą Types of EV Batteries âą Charging process and Requirements âą Swapping âą Examples of EVâs using Different Batteries âą Future
- 3. What is EV Battery ? âą An EV (electric vehicle) battery is a rechargeable battery that powers an electric vehicle's electric motor. âą These batteries are designed to store and deliver electrical energy to the vehicle's motor, providing the power necessary to propel the vehicle. âą EV batteries come in various shapes, sizes, and chemistries, and their capacity is measured in kilowatt-hours (kWh). The larger the battery capacity, the more energy it can store and the further the vehicle can travel on a single charge. âą Lithium-ion batteries are currently the most commonly used type of EV battery due to their high energy density, long lifespan, and relatively low cost.
- 4. EV Battery History ⹠Rechargeable batteries that provided a viable means for storing electricity on board a vehicle did not come into being until 1859, with the invention of the lead-acid battery by French physicist Gaston Planté. ⹠An early electric-powered two-wheel cycle was put on display at the 1867, but it couldn't drive reliably in the street. ⹠First practical Electric car was built by Thomas Parker in 1884.
- 5. EV Battery Requirements âą Safe âą High Power âą High Capacity âą Small and Light âą Large Format âą Long Life âą Low Overall Cost
- 6. EV Battery Types Lead-acid âą Flooded lead-acid batteries are the cheapest and most common traction batteries available. âą There are two main types of lead-acid batteries: automobile engine starter batteries and deep cycle batteries. âą Traditionally, most electric vehicles have used lead-acid batteries due to their mature technology, high availability, and low cost. âą Lead-acid batteries in EV applications end up being a significant (25â50%) portion of the final vehicle mass. âą The efficiency (70â75%)
- 7. Nickel-metal hydride ï§ They boast an energy density of 30â80 Wh/kg, far higher than lead-acid. ï§ When used properly, nickel-metal hydride batteries can have exceptionally long lives. ï§ Present NiMH,RAV4EVs that still operate well after 100,000 miles (160,000 km) and over a decade of service ï§ Downsides include the poor efficiency, high self-discharge, very finicky charge cycles, and poor performance in cold weather.
- 8. Zebra or Sodium Battery ⹠The sodium or "zebra" battery uses molten chloroaluminate (NaAlCl4) sodium as the electrolyte. ⹠The Zebra battery boasts an energy density of 120Wh/kg. ⹠The downsides to the Zebra battery include poor power density (<300 W/kg) and the requirement of having to heat the electrolyte to about 270 °C (520 °F). ⹠Zebra batteries have been used in the Modec vehicle commercial vehicle since it entered production in 2006
- 9. Lithium ion âą The traditional lithium-ion chemistry involves a lithium cobalt oxide cathode and a graphite anode. âą This yields cells with an impressive 200+ Wh/kg energy density and good power density. âą 80 to 90% charge/discharge efficiency. âą Silicon nanowires, silicon nanoparticles, and tin nanoparticles promise several times the energy density in the anode.
- 10. Charging âą Charging time is limited primarily by the capacity of the grid connection. âą most batteries do not accept charge at greater than their charge rate ("1C"), because high charge rate has adverse effect on the discharge capacities of batteries. âą The charging power can be connected to the car in two ways : -> conductive coupling -> inductive charging
- 11. In Detail âą The first is simple as a, mains lead into a weatherproof socket through special high capacity cables with connectors to protect the user from high voltages. âą The second approach is that a,special 'paddle' is inserted into a slot on the car. The paddle is one winding of a transformer, while the other is built into the car. When the paddle is inserted it completes a magnetic circuit which provides power to the battery pack.
- 12. Advantages of Charging Systems âą The advantage of the inductive approach is that there is no possibility of electrocution as there are no exposed conductors, âą Although interlocks, special connectors and ground fault detectors can make conductive coupling nearly as safe. âą Inductive charging can also reduce vehicle weight, by moving more charging component off board.
- 13. Examples of EV Using Different Batteries Using NIMH Battery The General Motors EV1 had a range of 75 to 150 miles (240 km) with NiMH batteries in 1999.
- 14. Using Li-ion âą New lithium-ion battery -equipped EVs provide 320â480 km (200â300 mi) of range per charge. Lithium is also less expensive than nickel. âą Car developed by NISSAN in 2001.
- 15. Swapping âą An alternative to recharging is to exchange drained or nearly drained batteries with fully charged batteries. Features of Swapping :- âą The consumer is no longer concerned with battery capital cost, life cycle, technology, maintenance, or warrantee issues. âą Swapping is far faster than charging: battery swaps equipment built by the firm Better Place. âą Swap stations increase the feasibility of distributed energy storage.
- 16. Future Carbon nanotube battery âą Alternative is developing a carbon nanotube lead acid battery pack âą According to the company, deliver 380 miles (610 km) range and can be recharged in less than 10 minutes. âą According to U.S. Energy Secretary Chu, costs for a 40 mile range battery will drop from a price in 2008 of $12K to $3,600 in 2015 and further to $1,500 by 2020.
- 17. Conclusion âą Electric Battery Automobiles are really important as they will prevent a major source of increased Global Warming and other natural problems. âą The most commonly used type of battery in commercial electric vehicles is lithium-ion batteries. These batteries have become the dominant technology in the EV industry due to their high energy density, long cycle life, and relatively low cost. âą Other types of batteries, such as nickel-metal hydride and lead-acid batteries, have been used in the past, but they have largely been replaced by lithium-ion batteries due to their better performance and lower weight. âą However, there are also ongoing research and development efforts to improve battery technology and explore alternative options such as solid- state batteries and hydrogen fuel cells.