التفاصيل البيبلوغرافية
| العنوان: |
SECONDARY BATTERY, ELECTRONIC DEVICE, ELECTRIC POWER TOOL, ELECTRICAL VEHICLE, AND ELECTRIC POWER STORAGE SYSTEM |
| Document Number: |
20120244410 |
| تاريخ النشر: |
September 27, 2012 |
| Appl. No: |
13/421130 |
| Application Filed: |
March 15, 2012 |
| مستخلص: |
A secondary battery capable of suppressing resistance rise even after repeated charge and discharge is provided. The secondary battery includes a cathode, an anode, and an electrolytic solution. The anode contains titanium-containing lithium composite as an anode active material, and the electrolytic solution contains cyclic disulfonic acid anhydride. |
| Inventors: |
Kawashima, Atsumichi (Fukushima, JP); Imoto, Hiroshi (Fukushima, JP); Shiratsuchi, Tomoyuki (Fukushima, JP); Sakamoto, Takuma (Fukushima, JP); Ueda, Naoto (Fukushima, JP); Nishimoto, Atsushi (Fukushima, JP); Kubota, Tadahiko (Kanagawa, JP); Ihara, Masayuki (Fukushima, JP) |
| Assignees: |
SONY CORPORATION (Tokyo, JP) |
| Claim: |
1. A secondary battery comprising: a cathode; an anode; and an electrolytic solution, wherein the anode contains one or more of titanium-containing lithium composite oxides expressed by the following Formula 1 to Formula 3 as an anode active material, and the electrolytic solution contains cyclic disulfonic acid anhydride expressed by the following Formula 4 or cyclic disulfonic acid anhydride expressed by the following Formula 5 or both. Li[LixM1(1-3x)/2Ti(3+x)/2]O4 Formula 1 where M1 is one or more of Mg, Ca, Cu, Zn, and Sr, and x satisfies 0≦x≦⅓. Li[LiyM21-3yTi1+2y]O4 Formula 2 where M2 is one or more of Al, Sc, Cr, Mn, Fe, Ga, and Y, and y satisfies 0≦y≦⅓. Li[Li1/3M3zTi(5/3)-z]O4 Formula 3 where M3 is one or more of V, Zr, and Nb, and z satisfies 0≦z≦⅔. [chemical expression included] where R1 to R4 are an alkyl group (CmH2m+1: m satisfies 0≦m≦4). [chemical expression included] where R5 to R10 are an alkyl group (CnH2n+1: n satisfies 0≦n≦4). |
| Claim: |
2. The secondary battery according to claim 1, wherein the cyclic disulfonic acid anhydride is 1,2-ethanedisulfonic acid anhydride or 1,3-propanedisulfonic acid anhydride or both. |
| Claim: |
3. The secondary battery according to claim 1, wherein a content of the cyclic disulfonic acid anhydride in the electrolytic solution is from 0.1 wt % to 5 wt % both inclusive. |
| Claim: |
4. The secondary battery according to claim 1, wherein the electrolytic solution contains halogenated cyclic ester carbonate expressed by the following Formula 6 or unsaturated carbon bond cyclic ester carbonate expressed by the following Formula 7 or both. [chemical expression included] where R11 to R14 are a hydrogen group, a halogen group, an alkyl group (CpH2p+1: p satisfies 0≦p≦4), or a halogenated alkyl group (CqH2q+1Xr: X is a halogen, q satisfies 0≦q≦4, and r satisfies 0≦r≦2q+1), and one or more of R11 to R14 are a halogen group or a halogenated alkyl group. [chemical expression included] where R15 and R16 are an alkyl group (CsH2s+1: s satisfies 0
|
| Claim: |
5. The secondary battery according to claim 4, wherein the halogenated cyclic ester carbonate is 4-fluoro-1,3-dioxolane-2-one, and the unsaturated carbon bond cyclic ester carbonate is vinylene carbonate. |
| Claim: |
6. The secondary battery according to claim 1, wherein the electrolytic solution contains propylene carbonate as a cyclic ester carbonate. |
| Claim: |
7. The secondary battery according to claim 1, wherein the cathode and the anode are layered with a separator in between, and the separator includes a base material layer as a porous film and a polymer compound layer provided on one or both surfaces of the base material layer. |
| Claim: |
8. The secondary battery according to claim 7, wherein the polymer compound layer contains polyvinylidene fluoride. |
| Claim: |
9. The secondary battery according to claim 1, wherein the secondary battery is a lithium ion secondary battery. |
| Claim: |
10. An electronic device using the secondary battery according to claim 1. |
| Claim: |
11. An electric power tool using the secondary battery according to claim 1. |
| Claim: |
12. An electrical vehicle using the secondary battery according to claim 1. |
| Claim: |
13. An electric power storage system using the secondary battery according to claim 1. |
| Current U.S. Class: |
429/144 |
| Current International Class: |
01; 01; 01; 01; 01; 01 |
| رقم الانضمام: |
edspap.20120244410 |
| قاعدة البيانات: |
USPTO Patent Applications |