Anode and secondary battery
View Patent ↗A secondary battery capable of providing a high energy density and superior cycle characteristics is provided. The secondary battery includes a cathode, an anode, and an electrolytic solution. The anode has an anode active material layer containing a carbon material and a lithium-containing compound (Li 3-a M a N) as an anode active material. M is one or more transition metal elements. a is a numerical value satisfying 0<a≦0.8. The average particle diameter of the lithium-containing compound is 1 μm or less
1. An anode comprising an anode active material layer , the anode active material layer including:
a carbon material and a lithium containing compound represented by the formula: Li 3-a M a N, where M is one or more transition metal elements and a is 0<a≦0.8,
wherein,
the lithium-containing compound has an average particle diameter of 1 μm, and
the lithium-containing compound is present in the anode active material in the amount from and including 5 to 10 mass %.
2. The anode according to claim 1 , wherein the anode active material layer contains polyvinylidene fluoride.
3. The anode according to claim 1 , wherein M is cobalt.
4. The anode according to claim 1 , wherein and the carbon material contains graphite in which lattice spacing in the C-axis direction in X-ray diffraction is in the range from and including 0.3350 nm to 0.3363 nm.
5. A secondary battery comprising:
a cathode;
an anode; and
an electrolytic solution,
wherein,
the anode has an anode active material layer containing a carbon material and a lithium compound represented by the formula: Li 3-a M a N, where M is one or more transition metal elements and a is 0<a≦0.8, and
the lithium-containing compound has an average particle diameter of 1 μm and,
the lithium-containing compound is present in the anode active material in the amount from and including 5 to 10 mass %.
6. The secondary battery according to claim 5 , wherein the anode active material layer contains polyvinylidene fluoride.
7. The secondary battery according to claim 5 , wherein M is cobalt.
8. The secondary battery according to claim 5 wherein and the carbon material contains graphite in which lattice spacing in the C-axis direction in X-ray diffraction is in the range from and including 0.3350 nm to 0.3363 nm.