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Used EV batteries could power vehicles, houses or even towns – if their manufacturers share vital data

May 1, 2025
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Used EV batteries could power vehicles, houses or even towns – if their manufacturers share vital data
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Certain! Right here’s a revised model of the article with none HTML formatting:


Electrical automobiles (EVs) are more and more turning into widespread worldwide. Over 17 million battery-electric and hybrid automobiles had been offered final 12 months, with projections suggesting that this 12 months’s gross sales might attain 20 million. At the moment, practically 20% of all automobiles offered are electrical.

Because the variety of electrical automobiles rises, a major problem emerges: what to do with the massive batteries as soon as they attain the tip of their lifespan, usually 12 to fifteen years, though some could final 40% longer. A mean EV battery weighs round 450 kilograms.

By 2030, roughly 30,000 tonnes of EV batteries in Australia would require disposal or recycling. This determine is predicted to extend to 360,000 tonnes by 2040, and 1.6 million tonnes by 2050.

Is that this a regarding problem? Not essentially. When an EV battery’s life in a car concludes, it usually nonetheless holds substantial power, permitting it to energy smaller automobiles, properties, and even complete cities when related collectively.

Nevertheless, to make the most of these batteries successfully, we want higher details about their well being, supplies, and historical past, particularly relating to any accidents they might have been concerned in. At the moment, acquiring this information is difficult, and important modifications are wanted.

Large Potential, Difficult Actuality

Outdated EV batteries current appreciable potential however realizing that potential is not simple. Precisely assessing battery efficiency, degradation charges, and total well being—how a lot capability stays in comparison with after they had been new—could be tough.

Typically, car producers prohibit entry to this important information, and as soon as a battery is eliminated, particular info turns into unavailable. This case poses actual dangers; a defective or degraded battery could catch hearth throughout opening or improper utilization. With out information, recyclers are left with out steerage.

The financial viability of reusing EV batteries depends on dependable estimates of their remaining capability and efficiency. With out sturdy information, corporations could also be hesitant to put money into repurposing markets, fearing monetary dangers.

Extracting Minerals from a Battery

EV batteries comprise important minerals comparable to nickel, cobalt, lithium, and manganese. Remarkably, as much as 95% of the supplies in an EV battery could be recycled.

Sadly, effectively recycling these batteries is difficult. Producers usually prioritize efficiency and security, which can lead to recyclability being uncared for. Many battery packs are sealed for security, complicating the disassembly of the person cells. Dismantling these batteries is labor-intensive and time-consuming, requiring crushing and subsequent extraction of minerals.

Furthermore, the chemical composition of EV batteries varies broadly—comparable to lithium iron phosphate and nickel manganese cobalt—however this important info is commonly not labeled.

Higher Methods of Assessing Battery Well being

Used EV batteries could be categorized primarily based on their well being standing:

  • Excessive (80% or extra capability): Appropriate for refurbishment and reuse in comparable functions, together with electrical automobiles, mopeds, bicycles, and golf carts.
  • Medium (60-80%): Very best for repurposing in numerous functions, comparable to stationary energy storage methods.
  • Low (under 60%): Require shredding and refining processes to recuperate useful minerals for brand spanking new batteries.

Researchers have lately made strides in estimating the well being of used EV batteries with out direct entry to information, though having utilization and efficiency information would yield extra correct assessments.

What’s at Stake?

An EV battery is a powerful piece of know-how. Nevertheless, its manufacturing includes lengthy provide chains that depend on important minerals, and the manufacturing course of can result in air pollution and carbon emissions.

Ideally, EV batteries ought to be absolutely utilized earlier than recycling. Repurposing will assist mitigate the necessity for brand spanking new batteries. If outdated batteries are improperly saved or discarded, there may very well be dangers of fires and contamination of soil and water.

At current, corporations and people usually battle to entry efficiency information, complicating the evaluation of battery well being and lifespan. Consequently, many batteries could also be discarded or recycled prematurely.

Recycling EV batteries is an outlined course of however is energy-intensive and necessitates important chemical remedies.

What Must Change?

At the moment, many battery producers are reluctant to share efficiency information on account of issues about mental property and authorized points. To maximise the advantages of those advanced power storage units, this case should change, though such modifications could not originate from the trade itself.

In 2021, California carried out legal guidelines requiring producers to grant recyclers entry to information relating to battery well being. Equally, the European Union will mandate all EV batteries to return with a digital passport by January 2027, offering information on battery well being, chemistry, and any antagonistic occasions like accidents or publicity to excessive temperatures.

Australia ought to implement comparable measures to keep away from accumulating a surplus of unusable EV batteries.


Daryoush Habibi, Professor and Head of the Centre for Inexperienced and Sensible Power Programs, Edith Cowan College, and Yasir Arafat, Senior Analysis Affiliate (Electrical Automobile Batteries and Batteries Recycling), Edith Cowan College, contributed to this text, which is republished beneath a Artistic Commons license.



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