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Thread: Aluminum-Ion Graphene Batteries : Will they replace the dominant Lithium-ion format?!

  1. #1 Aluminum-Ion Graphene Batteries : Will they replace the dominant Lithium-ion format?! 
    Forum Senior Double Helix's Avatar
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    A unique and sophisticated aluminum-ion battery is being developed, and is close to marketing, by the Australian company Graphene Manufacturing Group (GMG)*. These new batteries employ a special form of graphite - graphene - which permits much higher efficiency over prior aluminum-ion batteries. According to GMG, which is getting ready to market their coin version next year, these new batteries charge up to 60 times faster than the best lithium-ion cells, the materials are much less costly, and are available in many places.

    Quoting from the article:

    "The new battery cells are claimed to deliver far more power density than current lithium-ion batteries, without the cooling, heating or rare-earth problems they face." “So far there are no temperature problems. Twenty percent of a lithium-ion battery pack (in a vehicle) is to do with cooling them. There is a very high chance that we won’t need that cooling or heating at all,” Nicol claimed. “They don’t need circuits for cooling or heating, which currently accounts for about 80kg in a 100kWh pack.”

    end quote

    According to testing by GMG, there is much less risk for fires, and the batteries have three times the life span of lithium-ion batteries. There are numerous other aspects that make them very attractive.

    Quoting from the article:

    "There is also a massive geopolitical, cost, environmental and recycling advantage from using aluminum-ion cells, because they use hardly any exotic materials. "It’s basically aluminum foil, aluminum chloride (the precursor to aluminum and it can be recycled), ionic liquid and urea,” Nicol said.“Ninety percent of world lithium production and purchasing is still through China and 10 percent is through Chile. “We have all the aluminum we need right here in Australia, and they can be safely made in the first world.”"

    The new cell technology, Nicol insisted, could also be industrialized to fit inside current lithium-ion housings, like the Volkswagen Group’s MEB archicture, heading off problems with car-industry architectures that tend to be used for up to 20 years. “Ours will be the same shape and voltage as the current lithium-ion cells, or we can move to whatever shape is necessary,” Nicol confirmed. “It’s a direct replacement that charges so fast it’s basically a super capacitor. “Some lithium-ion cells can’t do more than 1.5-2 amps or you can blow up the battery, but our technology has no theoretical limit.”"

    end quote

    These are just some of the advantages claimed by this new battery. But the safety, super-fast charging times, extended life spans, and the lower cost of materials and their abundance make this a very likely replacement for the costly, fire-prone, and difficult to recycle lithium format.


    "Developer Of Aluminum-Ion Battery Claims It Charges 60 Times Faster Than Lithium-Ion, Offering EV Range Breakthrough"

    * https://www.forbes.com/sites/michael...h=5f1d940f6d28


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  3. #2  
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    Unlikely. Graphene is extremely expensive and difficult to work with. Also in order to have good energy density you need to have as big chemical potential (voltage) difference between anode and cathode as possible. I don't see how graphene could contribute to this.


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  4. #3  
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    The manufacturing and marketing of graphene-based batteries* will tell the story about their commercial viability.


    "GMG Commences Construction of Graphene Aluminium-Ion Battery Pilot Plant"

    * https://www.yahoo.com/now/gmg-commen...090000495.html
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