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Thread: Purdue Uni resolves serious sodium-ion battery issues

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    Purdue Uni resolves serious sodium-ion battery issues

    Sodium is much cheaper and more earth abundant than Lithium.
    Read more.

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    ilh
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    Re: Purdue Uni resolves serious sodium-ion battery issues

    Huzzah, yet another promising battery breakthrough we won't see for another 15 years, if ever.

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    Re: Purdue Uni resolves serious sodium-ion battery issues

    Another one for the list.

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    Re: Purdue Uni resolves serious sodium-ion battery issues

    Another one to disappear into the ether with suspicious circumstances like paper batteries and similar

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    Re: Purdue Uni resolves serious sodium-ion battery issues

    Seems very experimental with no idea of retail product.
    Rhetorical questions:
    Wh/kg? Wh/cm^3? Charge efficiency? Useful charges for # life? Capacity after 1000 charges? Retail or manufacture cost $/Wh? Operating and storage temperature range? What happens if battery is broken or spiked with metal? How much trouble to recycle?

    The inventors don't say and nobody knows? Till then, I don't care.

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    Re: Purdue Uni resolves serious sodium-ion battery issues

    Quote Originally Posted by tygrus View Post
    Seems very experimental with no idea of retail product.
    Rhetorical questions:
    Wh/kg? Wh/cm^3? Charge efficiency? Useful charges for # life? Capacity after 1000 charges? Retail or manufacture cost $/Wh? Operating and storage temperature range? What happens if battery is broken or spiked with metal? How much trouble to recycle?

    The inventors don't say and nobody knows? Till then, I don't care.
    The energy density is determined largely by the chemistry, and a quick search using the search engine of your choice will show that it is similar to lithium-iron phosphate.

    The advantages include the plentiful supply of sodium and the fact that it can be discharged to less that 30% capacity without damage.

    The disadvantages are problems over the number of charge cycle, caused by problems with the chemistry at the ion exchange at the cathode - a problem that this research claims to have overcome.

    While I can’t answer your rhtorical questions accurately, while sodium as an alkali metal is reactive, it is less reactive than lithium, and So the dangers of a sodium cell being punctured would be no worse than that of a lithium cell.

    So this may be a significant breakthrough on the path to a new generation of secondary cell, which may use already established manufacturing techniques for cells using alkali metals.
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