LiFePO4 Batteries: The Way Forward To Solve the Cobalt Conundrum

Every year there are international conferences that emphasize the urgency of saving the planet with buzzwords like sustainability and harnessing renewable energy. To be fair, they haven’t been completely useless and the field of renewable energy has seen some progress. Rechargeable LiFePO4 akku batteries have made powering appliances with solar energy a viable option. But, the lingering issue of Cobalt mining needs to be addressed.

You’ll learn how Cobalt, despite being the ‘wonder element’ of the renewable energy industry, has disproportionately affected the lives of thousands of people in a remote corner of the world. We’ll also highlight the properties of LiFePO4 batteries and the important role played by Victron Energy LiFePO4 batteries in solving the modern-day slavery issue.

The Cobalt problem

Cobalt (Atomic Number 27) is a ferromagnetic metal that lies in group 9 and period 4 of the periodic table. It is not a rare-earth metal per se but concentrated only in certain parts of the world. Most of the world’s Cobalt reserves are located in the African continent, the Democratic Republic of Congo in particular. This small African country alone is the source of half the world’s Cobalt reserves.

But these are all facts about the metal. What’s the problem then?

Well, here it is:

The world of ‘environment-friendly’ rechargeable batteries is built on the lives of poor Congolese people. That’s what Siddharth Kara has poignantly pointed out in his new book Cobalt Red. The book shares the horror stories of children, women, and men who work in these dangerous mines for a pittance. They touch the toxic Cobalt and breathe in its toxic fumes while the threat of mine collapse constantly looms over their heads.

Why is Cobalt so important?

With increasing clamor for green technologies, the world is slowly shifting to alternative energy sources. The goal is to steadily replace oil and natural gas. Electric vehicles and solar panels are thus being manufactured at an increasing rate. Rechargeable batteries power these devices and are essential components that include cobalt. Metals like nickel and cobalt are found in the majority of Li-ion batteries. Lead acid batteries that power households and recreational vehicles use this metal in abundance.

You can gauge the importance of Cobalt from the global share of the renewable energy industry. The global renewable energy market is pegged to reach $US 2 trillion by 2030. It is constantly rising every year. This rise has been fuelled by the shiny ferromagnetic metal.

But even though the world does need to function on alternative energy sources, it shouldn’t come at the cost of Congolese lives. So what’s the solution then? The LiFePO4 akku batteries have shown the way ahead. These batteries don’t use Cobalt. And companies like Victron Energy are trying their best to fix the Cobalt supply chain.

LiFePO4 batteries

Here’s the scoop if you’re still wondering what on Earth are LiFePO4 batteries. The Lithium Iron Phosphate battery or the LFP battery is a unique Li-ion battery that doesn’t use Cobalt or Nickel. Instead, it uses Iron phosphate as the cathode material. Traditional Li-ion batteries use Cobalt oxide or Nickel oxide as the cathode material. This gives them an edge over the traditional AGM batteries as they store more energy per volume and even last longer.

Features of LiFePO4 batteries

This battery technology has been a welcome addition to the renewable energy industry. They have been a great improvement to traditional battery technology in more ways than one. Here are the relevant features of these batteries:

• Good temperature tolerance range: LiFePO4 akku batteries function well anywhere between -20 ℃ to 60 ℃. This is the temperature range where most humans live! Traditional Li-ion batteries have a much-limited temperature tolerance.

• High energy density: LiFePO4 batteries have relatively high energy density. They store more energy than Li-ion batteries. They are compact energy-storage devices that store more energy in less space. They are hence preferred by EV manufacturers.

• Longer battery cycle: The battery cycle of a rechargeable battery means the number of times it moves through the charging and discharging process before its capacity is decreased. LiFePO4 batteries run for 5000-6000 cycles before reaching the 50% capacity. This is almost double that of Li-ion batteries.

• Cost-effective: Although these batteries don’t come cheap. But considering their long lifespan, they are highly cost-effective. Purchasing one LiFePO4 battery is a significantly better investment than purchasing several Li-ion ones at once.

• Safe to use: With LiFePO4 batteries, there’s little risk of hazardous gas release. The absence of toxic metals like Cobalt and Nickel makes them safer to use. There are much lower chances of thermal runaway and overheating compared to AGM batteries.

Key Takeaway: How can LiFePO4 batteries solve the Cobalt mining issue?

Since the LiFePO4 akku batteries eliminate the use of Cobalt or Nickel, they have addressed the challenge of modern-day slavery in the dreadful Cobalt mines of Congo. We need more technological advancements in rechargeable batteries like this. More importantly, as Kara asserts in his book Cobalt Red, the need is to fix the Cobalt supply chain. The metal could be mined more professionally for its valid use elsewhere.