Electric vehicles use batteries to power the electric motor, which drives the vehicle. A manufacturer can either use a Lithium-ion battery, a Lead-acid battery, or an Ultracapacitor battery. It depends on the model type, cost, and specifications of the vehicle,
Nickel (Ni)
Two of the most commonly used types of batteries, Nickel Cobalt Aluminum (NCA) and Nickel Manganese Cobalt (NMC) use 80% and 33% nickel respectively; newer formulations of NMC are also approaching 80% nickel. Most Li-ion batteries now rely on nickel. Li-ion batteries were incorporated into the next generation of electric cars, as their superior power density became critical for moving vehicles over long distances.
Lithium iron phosphate (LiFePO4)
General Characteristics and specification
Enhanced Olivine*structure (excellent thermal 500° C and structural stability)
Lower raw material cost (using iron and phosphorus)
Safer, non-toxic material (safe for human and environment)
Longer cycle life(2,000-7,000) (until battery capacity lowers to 80% of original
Higher current and peak power (electric vehicle application)
Slower rate of capacity loss (10 years, suitable for E.S.S*application)
Steady, constant discharge voltage (star at 3.4V and ends at 3.35 V)
Lithium-ion batteries
A Lithium-ion or Li-ion battery is a is a type of rechargeable batteries which uses the reversible reduction of lithium ion to store energy. It is the predominant battery type used in portable consumer electronics and Electric vehicle. It also sees significant use for grid-scale energystronger and military and aerospace applications. Compared to other rechargeable battery technologies, Li-ion batteries have high energy densities, low self-discharge, and no memory effect (although a small memory effect reported in LFP cell has been traced to poorly made cells.
These are the most common type of EV batteries and are also found in consumer electronic items like smartphones, tablets, and laptops.
Electric cars are the future, for real this time.
Electric Vehicle Technology
01
5th GenerationCGVT
The world’s first and best transmission developed in Korea Basic concept and introduction of the technology
Existing transmissions are toolarge and has a complex structure, so it can’t be used for all machines equipped with electric motors. It has been used only for internal combustion engine vehicles using gasoline or diesel.
02
Technological Proof Case
Completion of three times efficiency demonstration.
1.New eCART
Electric cart 5equipped with 5thCGVTruns 50km by using 1 1horsepower electric motor and a 24-volt battery.
2.Other eCART equipped with 6 horsepower motor and 72volt battery
6 runs 30km. (Test results proved that the performance of the 5th CGVT is 3 times that of the existing cart.)
※ Proved that superior driving performance compared to existing vehicles.
※ No problem even in applying high power motors of 200 horsepower due to robust structure transmission.
Proof of the practicality of CGVT would enable its application to hydrogen fuel cell vehicles, ships, submarines, tanks and etc., and due to its cutting edge, it is possible to dominate the global market.
(It also possesses the potential as anothernew growth engine on a national scalefollowing semiconductors and mobile phones.)
