u/PotentialBest147

I’ve been reading a bit about electric vehicles and got curious about how manufacturers are handling heat control in battery packs. Since battery temperature directly affects performance, charging speed, and lifespan, it seems like a critical area in automotive engineering.

From what I understand, some companies use liquid cooling while others rely on advanced air cooling or phase-change materials. Tesla, for example, uses a liquid thermal management system, but I’m interested in how other OEMs are approaching this problem.

What are the latest engineering solutions being used in the industry to improve efficiency and safety in battery thermal systems? Are there any emerging technologies that look promising for next-gen EVs?

I have a 2014 Toyota Corolla LE with a 1.8L engine and around 142,000 miles on it.

Lately I’ve been facing an overheating issue. The temperature goes up mainly when I’m driving in traffic or stopping often, but on highways it seems normal.

So far I checked a few things:

• Coolant level is fine
• No visible leaks
• Fan seems to be working
• Heater inside the car works normally
• No warning lights on the dashboard

I’m not sure what the real issue is. Maybe thermostat, radiator, water pump, or something related to the cooling fan.

Before I start replacing parts, I wanted to ask here for advice.

If anyone has faced this issue before, please guide me on what should I check first.