ELECTRODE BODY FOR NON-AQUEOUS RECHARGEABLE BATTERY, NON-AQUEOUS RECHARGEABLE BATTERY, AND METHOD FOR MANUFACTURING ELECTRODE BODY OF NON-AQUEOUS RECHARGEABLE BATTERY
An electrode body for a non-aqueous rechargeable battery includes a positive electrode substrate and a positive electrode mixture layer. A ratio of a specific surface area of the positive electrode plate to a density of the positive electrode mixture layer is 1.0 to 2.0, inclusive. A ratio of a spring constant of the electrode body to the specific surface area of the positive electrode plate is 30 to 80, inclusive.
1 . An electrode body for a non-aqueous rechargeable battery, the electrode body comprising:
a positive electrode plate including a positive electrode substrate and a positive electrode mixture layer;
a ratio of a specific surface area of the positive electrode plate to a density of the positive electrode mixture layer being 1.0 to 2.0, inclusive; and
a ratio of a spring constant of the electrode body to the specific surface area of the positive electrode plate being 30 to 80, inclusive.
2 . The electrode body according to claim 1 , wherein:
the specific surface area of the positive electrode plate is 2.5 m 2 /g to 4.0 m 2 /g, inclusive;
the density of the positive electrode mixture layer is 2.0 mg/cm 3 to 3.5 mg/cm 3 , inclusive; and
the spring constant of the electrode body is 120 kN/mm to 240 kN/mm, inclusive.
3 . The electrode body according to claim 1 , wherein:
the positive electrode mixture layer contains a positive electrode conductive material; and
the positive electrode conductive material is carbon nanotubes or carbon nanofibers having a specific surface area of 150 m 2 /g to 300 m 2 /g, inclusive.
4 . A non-aqueous rechargeable battery, comprising:
the electrode body according to claim 1 .
5 . A method for manufacturing an electrode body of a non-aqueous rechargeable battery, the electrode body including a positive electrode substrate and a positive electrode mixture layer, the method comprising:
setting a ratio of a specific surface area of the positive electrode plate to a density of the positive electrode mixture layer to 1.0 to 2.0, inclusive; and
setting a ratio of a spring constant of the electrode body to the specific surface area of the positive electrode plate being 30 to 80, inclusive.
6 . The method according to claim 5 , wherein:
the specific surface area of the positive electrode plate is 2.5 m 2 /g to 4.0 m 2 /g, inclusive;
the density of the positive electrode mixture layer is 2.0 mg/cm 3 to 3.5 mg/cm 3 , inclusive; and
the spring constant of the electrode body is 120 kN/mm to 240 kN/mm, inclusive.
7 . The method according to claim 5 , wherein:
the positive electrode mixture layer contains a positive electrode conductive material; and
the positive electrode conductive material is carbon nanotubes or carbon nanofibers having a specific surface area of 150 m 2 /g to 300 m 2 /g, inclusive.
8 . A method for manufacturing a non-aqueous rechargeable battery including an electrode body, the electrode body including a positive electrode substrate and a positive electrode mixture layer, the method comprising:
setting a ratio of a specific surface area of the positive electrode plate to a density of the positive electrode mixture layer to 1.0 to 2.0, inclusive; and
setting a ratio of a spring constant of the electrode body to the specific surface area of the positive electrode plate to 30 to 80, inclusive.