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Thermal Design of Battery Pack - I

This lesson covers the fundamentals of battery pack design, focusing on the thermal design aspect. The lesson delves into the importance of maintaining optimal temperature for battery performance and longevity, and the impact of temperature on electrochemical reactions, efficiency, charge acceptance, power and energy availability, safety, and reliability. It also discusses the heat generation in a battery pack and the need for thermal management systems. The lesson uses illustrative examples to explain concepts like Joule heating and the impact of temperature on battery life cycles.

Video Highlights

00:18 - Introduction
03:26 - Thermal design of a battery pack
09:05 - Effects of temperature in a battery pack
15:03 - Required functions of thermal design
23:56 - Considerations for battery pack temperature
27:11 - Heat generation in a battery pack and its impact on the performance and lifespan of the pack
19:13 - Examples on heat load determination
35:14 - Energy flow in first principles

Key Takeaways

- Battery pack design involves four disciplines: electrical, mechanical, thermal, and BMS and embedded system.
- Temperature impacts electrochemical reactions, efficiency, charge acceptance, power and energy availability, safety, and reliability of the battery.
- Heat generation in a battery pack is a significant factor that needs to be managed to prevent thermal runaway and ensure optimal performance.
- Thermal management systems are essential to maintain the optimal temperature range and manage heat generation in a battery pack.