What is claimed is:
1. A lithium secondary battery provided with a positive electrode in which an aluminum foil containing manganese is used as a current collector, a negative electrode, and a non-aqueous electrolyte solution formed by dissolving lithium salt in a non-aqueous solvent, wherein
divalent manganese salt is added to said non-aqueous electrolyte solution.
2. The lithium secondary battery according to claim 1, wherein
said aluminum foil used as the current collector contains 0.6 to 2.0 wt % of manganese.
3. The lithium secondary battery according to claim 1, wherein
said divalent manganese salt to be added to the non-aqueous electrolyte solution is at least one type of divalent manganese salt selected from a group consisting of manganese (II) acetate, manganese (II) sulfate, manganese (II) benzoate, manganese (II) carbonate, and manganese (II) nitrate.
4. The lithium secondary battery according to claim 1, wherein
said divalent manganese salt to be added to the non-aqueous electrolyte solution is manganese (II) acetate.
5. The lithium secondary battery according to claim 1, wherein
an amount of said divalent manganese salt to be added to the non-aqueous electrolyte solution is in a range of 0.05 to 0.15 moll.
6. The lithium secondary battery according to claim 1, wherein
said lithium salt used in the non-aqueous electrolyte solution is represented by a constitutional formula LiN(R1SO2)(R2SO2) in which said R1 and R2 are of perfluoro alkyl group, said R1 and R2 may be the same or different from each other, and a total of number of carbon in said R1 and R2 is not less than 3.
7. The lithium secondary battery according to claim 6, wherein
the total of the number of carbon in said R1 and R2 is in the range of 3 to 6.
8. The lithium secondary battery according to claim 1, wherein
said lithium salt used in the non-aqueous electrolyte solution is represented by the constitutional formula LiC(R3SO2)(R4SO2)(R5SO2) in which said R3, R4, and R5 are of perfluoro alkyl group, said R3, R4, and R5 may be the same or different from each other, and the total of the number of carbon in said R3, R4, and R5 is not less than 3.
9. The lithium secondary battery according to claim 8, wherein
the total of the number of carbon in said R3, R4, and R5 is in the range of 3 to 6.
10. The lithium secondary battery according to claim 1, wherein
said lithium salt used in the non-aqueous electrolyte solution is at least one type of lithium salt selected from the group consisting of LiN(C2F5SO2)2, LiN(CF3SO2)(C4F9SO2), and LiC(CF3SO2)3.
11. The lithium secondary battery according to claim 1, wherein
said lithium salt used in the non-aqueous electrolyte solution is LiN(C2F5SO2)2.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A multilayer capacitor comprising a multilayer body in which a plurality of dielectric layers and a plurality of inner electrode layers are alternately laminated, and a plurality of terminal electrodes formed on the multilayer body;
wherein the plurality of inner electrode layers include first and second inner electrode layers alternately arranged;
wherein the plurality of terminal electrodes include first and second terminal electrodes electrically insulated from each other;
wherein the first inner electrode layer includes a first lead electrode connected to the first terminal electrode and a first capacitor electrode forming a capacitance component;
wherein the second inner electrode layer includes a second lead electrode connected to the second terminal electrode and a second capacitor electrode forming a capacitance component;
wherein the first capacitor electrode is provided with a pair of slits extending from a periphery corresponding to the first lead electrode, and a portion of the first capacitor electrode positioned between the pair of slits is continuous with the first lead electrode; and
wherein the second capacitor electrode is provided with a pair of slits extending from a periphery corresponding to the second lead electrode and a portion of the second capacitor electrode positioned between the pair of slits is continuous with the second lead electrode.
2. A multilayer capacitor according to claim 1, wherein at least one of the respective portions of the first and second capacitor electrodes positioned between the pairs of slits has a meandering or crank-shaped form.
3. A multilayer capacitor according to claim 1, wherein at least one of the first and second lead electrodes has an opening.
4. A multilayer capacitor according to claim 1, wherein at least one of the respective portions of the first and second capacitor electrodes positioned between the pairs of slits has an opening.
5. A multilayer capacitor according to claim 1, wherein the portion of the first capacitor electrode positioned between the pair of slits has a width set narrower on the rest side than on the side connected to the first lead electrode.
6. A multilayer capacitor according to claim 1, wherein the portion of the second capacitor electrode positioned between the pair of slits has a width set narrower on the rest side than on the side connected to the second lead electrode.
7. A multilayer capacitor according to claim 1, wherein an equivalent series resistance is set to a desirable value by regulating a length of the slits.
8. A multilayer capacitor comprising a multilayer body in which a plurality of dielectric layers and a plurality of inner electrode layers are alternately laminated, and a plurality of terminal electrodes formed on the multilayer body;
wherein the plurality of inner electrode layers include a plurality of first inner electrode layers and a plurality of second inner electrode layers alternately arranged;
wherein the plurality of terminal electrodes include a plurality of first terminal electrodes and a plurality of second terminal electrodes electrically insulated from each other;
wherein the first inner electrode layer includes a first lead electrode connected to one of the plurality of first terminal electrodes and a first capacitor electrode forming a capacitance component;
wherein the second inner electrode layer includes a second lead electrode connected to one of the plurality of second terminal electrodes and a second capacitor electrode forming a capacitance component;
wherein the first capacitor electrode is provided with a pair of slits extending from a periphery corresponding to the first lead electrode and a portion of the first capacitor electrode positioned between the pair of slits is continuous with the first lead electrode; and
wherein the second capacitor electrode is provided with a pair of slits extending from a periphery corresponding to the second lead electrode and a portion of the second capacitor electrode positioned between the pair of slits is continuous with the second lead electrode.
9. A multilayer capacitor according to claim 8, wherein at least one of the respective portions of the first and second capacitor electrodes positioned between the pairs of slits has a meandering or crank-shaped form.
10. A multilayer capacitor according to claim 8, wherein at least one of the first and second lead electrodes has an opening.
11. A multilayer capacitor according to claim 8, wherein at least one of the respective portions of the first and second capacitor electrodes positioned between the pairs of slits has an opening.
12. A multilayer capacitor according to claim 8, wherein the portion of the first capacitor electrode positioned between the pair of slits has a width set narrower on the rest side than on the side connected to the first lead electrode.
13. A multilayer capacitor according to claim 8, wherein the portion of the second capacitor electrode positioned between the pair of slits has a width set narrower on the rest side than on the side connected to the second lead electrode.
14. A multilayer capacitor according to claim 8, wherein an equivalent series resistance is set to a desirable value by regulating a length of the slits.
15. A multilayer capacitor comprising a multilayer body in which a plurality of dielectric layers and a plurality of inner electrode layers are alternately laminated, and a plurality of terminal electrodes formed on the multilayer body;
wherein the plurality of inner electrode layers include a plurality of first inner electrode layers and a plurality of second inner electrode layers alternately arranged;
wherein the plurality of terminal electrodes include a plurality of first terminal electrodes and a plurality of second terminal electrodes electrically insulated from each other;
wherein the first inner electrode layer includes a plurality of first lead electrodes respectively connected to the plurality of first terminal electrodes and a first capacitor electrode forming a capacitance component;
wherein the second inner electrode layer includes a plurality of second lead electrodes respectively connected to the plurality of second terminal electrodes and a second capacitor electrode forming a capacitance component;
wherein the first capacitor electrode is provided with a plurality of pairs of slits extending from respective peripheries corresponding to the first lead electrodes and respective portions of the first capacitor electrode positioned between the respective pairs of slits are continuous with the corresponding first lead electrodes; and
wherein the second capacitor electrode is provided with a plurality of pairs of slits extending from respective peripheries corresponding to the second lead electrodes and respective portions of the second capacitor electrode positioned between the respective pairs of slits are continuous with the corresponding second lead electrodes.
16. A multilayer capacitor according to claim 15, wherein at least one of the respective portions of the first and second capacitor electrodes positioned between the respective pairs of slits has a meandering or crank-shaped form.
17. A multilayer capacitor according to claim 15, wherein at least one of the first and second lead electrodes has an opening.
18. A multilayer capacitor according to claim 15, wherein at least one of the respective portions of the first and second capacitor electrodes positioned between the respective pairs of slits has an opening.
19. A multilayer capacitor according to claim 15, wherein the portion of the first capacitor electrode positioned between the pair of slits has a width set narrower on the rest side than on the side connected to the first lead electrode.
20. A multilayer capacitor according to claim 15, wherein the portion of the second capacitor electrode positioned between the pair of slits has a width set narrower on the rest side than on the side connected to the second lead electrode.
21. A multilayer capacitor according to claim 15, wherein an equivalent series resistance is set to a desirable value by regulating a length of the slits.