Non-aqueous electrolytic solution for lithium secondary battery or lithium ion capacitor, and lithium secondary battery or lithium ion capacitor using the same
摘要
說明書
The negative electrode can be prepared as follows: a negative electrode mixture slurry is prepared by kneading with the same conducting agent, binder and high boiling point solvent as in the above-described preparation of the positive electrode, then the negative electrode mixture slurry is applied on the current collector such as a copper foil, dried and pressurized to forma negative electrode mixture layer.
The density of the negative electrode exclusive of the current collector is usually 1.1 g/cm3 or more, and for the purpose of further enhancing the capacity of the battery, the density concerned is preferably 1.5 g/cm3 or more and more preferably 1.7 g/cm3 or more. It is to be noted that the upper limit of the density concerned is preferably 2 g/cm3 or less.
In addition, as the negative electrode active material for a lithium primary battery, lithium metal or a lithium alloy may be suitably mentioned.
The structure of the lithium battery is not particularly limited; a coin type battery, a cylindrical battery, a rectangular type battery or a laminate battery having a mono layer separator or a multilayer separator can be applied.
The separator for a battery is not particularly limited; however, single layer or laminate microporous film, woven fabric, or nonwoven fabric of polyolefins such as polypropylene and polyethylene can be used for the separator.
