BYD's Blade Battery-A Mission to Bring Safety to EV Batteries


The Blade Battery is an Innovation in Electric Vehicle Power and Safety
Blade BatteryPhoto byBYD

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Electric vehicles have been around for quite some time now, and we have all seen how they've evolved. From being expensive and having limited range, electric vehicles have come a long way in terms of performance and affordability. And now, with the introduction of BYD's Blade battery, they just got much safer. With its innovative design, the Blade battery promises to be a game-changer in EVs, offering high-density performance and safety. This blog post will examine the Blade battery and how it revolutionizes our thoughts on electric vehicle power.
BYD Han EVPhoto byBYD

One of the main reasons for this article was a recent discussion with a friend of mine regarding EV battery safety. There isn't a day when we don't hear of some spontaneously combusting EV making the news. Sometimes, just how energy-dense and dangerous these batteries are can be forgotten. The argument can be made that EV fires aren't more prevalent than conventional ICE (internal combustion engine) models, but they can be more devastating when they happen, as you can see here:

ABC News Australia (media by ABC News)

This is where BYD's Blade battery's innovative design comes in. Unlike traditional EV batteries, which consist of many individual cylindrical cells, the Blade battery uses a single-cell format. This design allows for a greater packing density, resulting in a higher energy capacity per unit volume. The single-cell design also allows for a more straightforward, robust battery pack, reducing the risk of failure.
Blade BatteryPhoto byBYD

The Blade battery's reduced risk of failure is a significant advantage over traditional EV batteries. The battery comprises lithium-iron-phosphate (LFP) cells, which are less prone to heat buildup and thermal runaway. So, what is thermal runaway? As defined by EV Firesafe:

All EV traction battery fires start with thermal runaway. Thermal runaway occurs when a battery cell short circuits & starts to heat up uncontrollably. Lithium ion batteries contain a large amount of energy in a very small space. Under normal operation, they rapidly convert chemical energy to electrical energy.

Because the Blade was manufactured to thwart thermal runaway, it is less likely to catch fire or explode in the event of a collision or other damage. BYD has performed rigorous safety tests on the Blade battery, including the mountain of all testing, the nail penetration test. Couple that with drop and overcharging tests; the results have been impressive.

How about this test?
Drive Over TestPhoto byBYD

The Drive Over Test (Above) saw a 46-ton fully loaded heavy-duty truck drive over the Blade Battery pack. The important takeaway is the battery successfully passed without leakage, deformation, or smoke. Even more surprising, the Blade battery was intact and ready to be used in an EV. In other words, these batteries were built to withstand tanks.

Another benefit of the Blade battery is its fast charging capabilities. With a 50% charge taking only 30 minutes, the Blade battery is a game-changer regarding charging time. This is made possible by the battery's ability to handle high charging currents without overheating. The Blade battery also has a longer cycle life, meaning it can go through more charge and discharge cycles before losing capacity. This makes it ideal for heavy electric vehicles like buses, trucks, and forklifts.

It's not all sunshine with the Blade battery, as it does have one glaring disadvantage, but doesn't everything? I am referring to the Blade's characteristics at low temperatures. This is an inherent problem with lithium-iron-phosphate batteries at lower temperatures. The battery power will be significantly reduced in cold winter conditions. If you live in a colder region, you could be making more trips to the nearest quick charger.

But what about the cost? While the Blade battery may seem like an expensive option, it's important to note that the reduced risk of failure and longer cycle life can make it a more cost-effective option in the long run. Additionally, the Blade battery's high packing density requires fewer cells, which can help offset the initial cost. Plus, with more EV manufacturers moving towards the Blade battery, we can expect prices to decrease as production ramps. Even Tesla has opted to jump on the bandwagon.
Blade BatteryPhoto byBYD

Conclusion: The Blade battery is a game-changer in electric vehicle power. With its innovative design, reduced risk of failure, fast charging capabilities, and longer cycle life, it's no wonder that more and more EV manufacturers are choosing to use it in their vehicles. Whether you're an electric vehicle enthusiast, a technophobe, or an innovator, the Blade battery is something everyone can appreciate. Its high-density performance and safety will pave the way for the next generation of electric vehicles.

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