Are NMC Batteries Safe?

Display showing cell chemistry
29th March 2021

NMC batteries are a hot topic within our industry, especially the debate between NMC vs. LFP batteries. Most commonly used in portable electronic devices, tools, and electric vehicles, NMC batteries are frequently used in a variety of different contents. However, recent incidents and reports have left people wondering whether NMC batteries are safe to use. Should people be worried about NMC batteries? Let’s discuss it further.


Before we discuss whether NMC batteries are safe, we need to understand their chemical composition, what makes them different from other lithium battery alternatives, and what impact this can have.

NMC batteries are made from a combination of Nickel, Manganese and Cobalt, with these metals making up the cathode material within the battery. What’s key here is that this chemical composition results in the release of oxygen as a by product. This means that improper use can result in thermal runaway, fires, and even explosions.


Given the chemistry of NMC batteries resulting in an increased risk of fire and explosion, and various stories racking up evidence against their use, it’s hard to argue that NMC batteries aren’t a serious safety concern.

You may have read the news regarding concerns about a fire at an Arizona public facility. This was back in 2019, with the suspected cause being LG Chem Batteries. Sadly, LG Chem has once again been in the news, this time with a product recall

Issued by the Australian Clean Energy Council (CEC), this recall links a number of battery models with potential risk of fire, and once again raises the question regarding home battery storage and safety.


Companies such as Tesla and LG Chem still use NMC in their very popular home battery storage models. With the safety concerns regarding this particular battery chemistry, is it a matter of time before this translates into other concerns such as insurance or warranty problems?

Fire is still one of the most expensive claims for insurance purposes worldwide. Currently, there are no known plans for insurers to specifically look at NMC Home Battery Storage. However, in light of recent developments and the recall of LG Chem Systems, is it only a matter of time before they do?

Picture this: you’ve invested in a significant system installation, only to find yourself unable to secure home insurance due to potential fire safety concerns tied to your energy storage system. While it may sound far-fetched, it is a possibility that you must consider.

Furthermore, it’s crucial to take into account warranty claims and availability. The long-term credibility and reputation of these big brands may come into question if further fire safety issues arise.


At Soltaro, we take safety concerns seriously. This is why we only ever use LFP cells in our solar energy storage systems. LFP batteries are more stable and simply don’t pose a fire safety risk when compared to NMC batteries. They have a wider temperature range than NMC cells before thermal runaway or cell damage is possible, making them a far safer choice. As such, they provide a much more attractive alternative for home energy storage, along with many other benefits.

If you want to learn more about LFP battery systems and how they can benefit your domestic or commercial property, contact our expert team today.

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