How about a giant lithium magnesium battery?

In terms of ingredients, magnesium is slightly less active than lithium (in fact the difference is not big), the energy density will not be greatly improved, the explosive power (discharge rate) will not be too high and the safety may be slightly better, the price of magnesium is slightly cheaper, but the composition of the battery is not only magnesium and lithium, the cost of other components may increase after replacement with magnesium . Judging from the maturity of lithium batteries, there is no need to develop products that do not differ much from those of the same period last year, but rather to focus on alternative products (supercapacitors, batteries fuel, etc.) with greater energy density, safer. , more ecological and less expensive.