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Analyze Internal Heat Management

3:08
16:46
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At 3:08 in

Inside the batteries on the most Popular Power tools: Ego Vs Milwaukee vs Dewalt Vs Stihl 4 k video

What happens here

The video delves into the critical aspect of heat management within the battery packs. Joe from EGO highlights the importance of preventing heat buildup in lithium-ion cells for longevity. Traditional 'brick' battery designs, where cells are tightly packed, are shown to retain heat. In contrast, EGO's patented 'Arc design' features a curved arrangement of cells, increasing the surface area for heat dissipation. Individual EGO cells are also shown with a specialized 'phase change material' (PCM) sleeve. This material changes its molecular structure as the cell heats up, actively drawing heat away from the battery, allowing it to operate cooler and prevent premature shutdowns.

Goal: Understand how different battery designs manage heat.

Tools and materials

  • Individual Lithium-ion Cells EGO — Demonstrating the phase change material sleeve
  • Phase Change Material — Encapsulating individual cells to absorb and dissipate heat

What they say

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it's all design and you know the prominent blocks is that they retain and the problem of lithium ion you don't want you want to do everything you possibly can to make sure that the battery is operating as cool as possible there's a lot of great science that some of the manufacturers kind of build into their systems to try to make sure that heat is control and the batteries are able to work even under extreme conditions there's different science that we all kind of deploy such as three parallel rows of cells which you know we've used in the ego battery pack and something we've been doing now for several years that we're now starting to see in the power tool industry which is very very effective especially for high amp discharge conditions but you know bricks are bricks and so what we try to do is something a little bit different so you have a you're the only one that doesn't have a brick yeah we have a patented art design so the arc design is a little bit different right and the cool thing about art is that it allows every cell inside the battery pack to have exterior exposure so that you have more surface area and easier to cool the other thing that we so you just jumped over in a four point that I want to make sure that we're heading on is that you have no Center batteries no I mean in some tools there might be like the larger battery packs that you know have 3p technology three parallel rows you might have some interior cells but you're going to have much more surface area with the arc design especially on definitely on one pane right you know for sure on two P so a lot of great advantages with the overall arc design the other thing I think that's pretty unique actually just pretty unique it is unique nobody else does this right is our phase change material I mean first and foremost you know we start off like some of the other premium brands I'm not all premium brands and use this cell this is the Samsung Samsung is the best matter battery manufacturer in our industry they've been doing it for a long time and it's an outstanding cell but we take this out and we let on other companies use this this is more expensive okay and so the fact is the Samsung cell is really the best in our entire industry today one of the things that we do to make it better though is we add this that's the phase change material this slave right here will change its molecular structure as the cell heats up so what happens it doesn't heat up it stays cool so because it stays cooler…

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