Dangers of Homemade Lithium Battery Packs
With more and more information on the Internet, more and more people start to try their own DIY lithium battery. After all, lithium batteries are expensive, and it may be cheaper to make them yourself. But regardless of why people do it, making your own batteries is very dangerous.
In this article, we'll examine what a lithium battery is, whether you can make it yourself, and why it's not worth the risk.
DIY Lithium Battery Pack
DIY Lithium Battery Pack
What is a lithium battery
Lithium-ion batteries are an advanced type of electrochemistry that uses lithium ions to power our handheld devices, cars, RVs, and everything in between. They consist of an anode, a cathode, and a battery electrolyte solution that transports ions from the anode to the cathode (when discharging) and from the cathode to the anode (when charging).
Lithium batteries have changed our world because of their high energy density and, therefore, it allows us to pack large amounts of electrical energy into small compartments. Also, since they are not as subject to the Peukert effect as lead-acid batteries, they can provide more power overall.
Is LiFePO4 the same as Li-ion?
LiFePO4 batteries are superior to Li-ion batteries in terms of cycle life (4-5 times longer than Li-ion batteries) and safety. This is a key advantage, as Li-Ion 18650 cells can overheat and even catch fire, while LiFePO4 cannot.
How to make lithium
Most battery-grade lithium in the world is produced in one of two ways: mining and acid leaching from hectorite ore (i.e. LiAl(SiO3)2) to produce a lithium sulfate solution, which is then converted into batteries through an electrochemical process grade lithium carbonate or hydroxide.
Can we make lithium?
For most of us, lithium batteries power our devices, gadgets, and vehicles so well that we don't give it much thought. But in some cases, a question may arise: Can I make my own lithium battery pack?
For example, DIY lithium starter batteries may be popular with those who want to power devices such as bicycles, skateboards or other motors. This is because lithium starter batteries are generally more expensive than lead-acid alternatives and may be cheaper to make yourself.
Yes; you can make your own lithium battery pack. But should you? Maybe not.
Let's take a look at why making your own lithium batteries is not a good idea.
Lithium-ion battery pack
Why DIY Lithium Batteries are a Bad Idea
Let's explore why you should think twice before making your own lithium battery. As you read, keep in mind all the safety features and tests that battery manufacturers perform when producing batteries. Ask yourself: Can I produce the same results as the factory? The answer is probably no.
Battery manufacturers have honed their testing and assembly process, which is difficult to replicate in DIY lithium batteries.
DIY works without any warranty or guarantee
So what to do if your battery fails and damages the electronics beyond repair? The problem with homemade lithium batteries is the lack of warranty.
Most devices offer some protection against these conditions, but not with homegrown batteries. So no matter what power source you're using, your battery is at a higher risk of failure and could suffer serious damage.
No testing/quality control
As mentioned earlier, premium battery manufacturers like Linkage Battery conduct rigorous testing to verify battery performance and ensure the safety of their products. However, if you make your own batteries, you may not be able to replicate the proven battery testing methods used by manufacturers.
Additionally, batteries like Maxworld have external certifications that require rigorous safety testing. Each battery has a Department of Transportation listing of 38.3, which is even a requirement to allow them to be shipped.
Without testing, you may not know there's a problem with the battery until it's too late. You may not have the equipment, knowledge or manpower to conduct these tests yourself.
Mismatched battery, volt and amp packs
Another possible problem is the battery structure. Problems can easily arise if the battery packs are not delivering the energy evenly, the motors aren't getting the correct amps, or the bus bars can't handle the amps going through them. These are risks when making your own lithium battery pack.
Instead, every LINKAGE battery is load tested before assembly. Every finished battery goes through quality control testing to ensure they meet our stringent voltage and amp-hour standards.
Testing and matching of lithium batteries is a critical step in building a reliable and safe lithium battery.
Reliability of BMS
If you've researched how to make your own 12v Li-Ion battery pack, you've probably heard of battery monitoring systems (BMS). BMS is an important part of lithium-ion batteries. They monitor to make sure the battery is working properly. Depending on the manufacturer, items such as temperature, load, voltage, SOC, resistance, and current can be measured. If something goes wrong, the BMS disconnects the battery for safety.
So if you don't have a reliable BMS, you won't know if your battery is working properly. And, if it fails, you don't have a security feature.
LINKAGE batteries use a proprietary BMS designed for our battery packs that are highly tested and designed to last the life of the battery.
Lithium battery fires are hard to put out
The last point is the worst-case scenario, but unfortunately, that's the reality of lithium-ion batteries.
First, due to the high energy density of lithium batteries, there is a risk of fire if not produced properly. If one of the batteries fails (which can happen if it's not made properly), the heat generated can set off a chain reaction called thermal runaway.
Depending on how many cells are in the battery and how well they are vented, this can lead to uncontrollable fires.
Homemade battery packs have worked fine for a while, but future spontaneous combustion is not uncommon due to structural flaws.
So, when you're trying to make a cheap battery yourself, you're probably inadvertently making dynamite.
Lithium-ion battery manufacturer
Should You Take the Risk of Making Your Own Lithium Batteries?
You know the proverb "I know I'm in danger"?
Consider that this might work for you building your own Lithium battery. If you know the basics of making batteries and think you can get it with the right research and materials - reconsider. DIY Lithium Batteries are very dangerous if not made correctly and many things can go wrong.
So if you ask us, please don't do it. Not worth the risk. While you might say we're biased, you'd be surprised how many stories of DIY attempts we hear from our customer service and tech support teams. Often, these DIY builders end up replacing their homes due to unreliability, peace of mind, and sometimes the worst fire.
Lithium battery catches fire
in conclusion
Lithium batteries are amazing! Their high energy density has revolutionized our world by allowing us to store energy in a small and portable way.
However, they can be very dangerous if built incorrectly. All sorts of things can go wrong, including thermal runaways, and ultimately, fires that are hard to put out. That's why we strongly advise against trying to get you
