Nonaqueous secondary battery
View Patent ↗To provide a novel structure of a separator in a secondary battery. A nonaqueous secondary battery includes a positive electrode, a negative electrode, an electrolyte solution, a first separator, and a second separator. The first separator and the second separator are provided between the positive electrode and the negative electrode. The first separator is provided with a first pore, the second separator is provided with a second pore, and the size of the first pore is different from the size of the second pore. Furthermore, the proportion of the volume of the first pores in the first separator is different from the proportion of the volume of the second pores in the second separator.
1. A nonaqueous flexible secondary battery comprising:
a positive electrode;
a negative electrode;
an electrolyte solution;
a first separator including first pores;
a second separator including second pores; and
a third separator including third pores,
wherein the positive electrode, the negative electrode, the first separator, the second separator, and the third separator are each a flexible material,
wherein the first separator is between the positive electrode and the negative electrode,
wherein the second separator is between the first separator and the negative electrode,
wherein the third separator is between the first separator and the positive electrode,
wherein a proportion of a volume of the first pores in the first separator is higher than a proportion of a volume of the second pores in the second separator and a proportion of a volume of the third pores in the third separator
wherein the negative electrode is enveloped by the second separator, an
wherein the positive electrode is enveloped by the third separator.
2. The nonaqueous flexible secondary battery according to claim 1 , wherein a thickness of the first separator is different from a thickness of the second separator.
3. The nonaqueous flexible secondary battery according to claim 1 , wherein the electrolyte solution comprises a lithium ion.
4. A nonaqueous flexible secondary battery comprising:
a positive electrode;
a negative electrode;
a first separator between the positive electrode and the negative electrode;
a second separator between the first separator and the negative electrode; and
a third separator between the first separator and the positive electrode,
wherein the positive electrode, the negative electrode, the first separator, the second separator, and the third separator are each a flexible material,
wherein the negative electrode is enveloped by the second separator, and
wherein the positive electrode is enveloped by the third separator.
5. The nonaqueous flexible secondary battery according to claim 4 , wherein a thickness of the first separator is different from a thickness of the second separator.
6. The nonaqueous flexible secondary battery according to claim 4 , further comprising an electrolyte solution.
7. The nonaqueous flexible secondary battery according to claim 6 , wherein the electrolyte solution comprises a lithium ion.
8. The nonaqueous flexible secondary battery according to claim 5 , further comprising an electrolyte solution.
9. The nonaqueous flexible secondary battery according to claim 8 , wherein the electrolyte solution comprises a lithium ion.