User:Hossamhashm/sandbox

Electric car charging

Lithium ions from a positive electrode discharge by passing through a separator or electrolyte. The ions then go into the negative electrode via a solid electrolyte interface (SEI) and intercalate there. Because of the unstable SEI created by repeated charging and discharging, rapid charging may have a deleterious effect on battery aging.

Since new charge techniques have reduced the needless chemical reaction and SEI is formed via a reduction reaction, new pulse charging has considerably enhanced the stability of SEI. As a result, a battery's lifespan and effectiveness have both increased in contrast to the conventional charging approach. Additionally, while using the conventional charging method, lithium ions may reduce the electrolyte (EC, mainly) during charging, producing ethylene in the process.

The internal pressure is controlled because the battery is closed. The ethylene generated will cause an internal overpressure in the battery. A battery under too much pressure may expand as a result of a rise in internal temperature, which could result in an explosion. But by stifling the electrolyte reduction reaction, the new composite waveform charging approach can lower the amount of ethylene produced. It appears to be a theoretical charging method for the future because it provides a moderate amount of energy for lithium ions to transfer during charging and a rapid negative pulse to stop undesirable chemical reactions.

Non-contact charging

Magnetic resonance is used in non-contact charging to move energy through the air between the charger and the battery. This results in an extremely effective energy transformation. EVs are able to have smaller batteries since the non-contact charger can constantly charge the car. It is more affordable, safer, and sustainably developed on its own. The MSRP of an EV is reduced as a result of the adoption of non-contact charging because the battery is the main cost factor for an EV. Additionally, it's possible that animals could be affected. Another issue for researchers is efficiency. However, it takes a lot of financial backing to build a non-contact charging mechanism. For instance, it involves the installation of a receiver coil under the automobile, the reconstruction of the road, and the placement of a transmitter coil under the power supply tracks in order to implement real-time charging on the road. This makes it possible for an automobile to be charged automatically while being driven. As a result, many EV producers use conventional charging techniques to keep costs down. Electronic devices near the charger may suffer during charging because non-contact charging systems rely on the electromagnetic field as their mode of operation. Additionally, it's possible that animals could be affected. Another issue for researchers is efficiency.

References