Lithium secondary battery positive electrode plate and lithium secondary battery
First Claim
1. A nonaqueous lithium secondary battery comprising:
- a positive electrode which inserts/detaches lithium ions, and includes a collector on which a positive electrode active material for inserting/detaching lithium ions, a conduction assistant for increasing electric conduction of said positive electrode active material, and a binding agent for binding said positive electrode active material and said conduction assistant are pasted;
a negative electrode for inserting/detaching lithium ions; and
a separator for separating said positive electrode and said negative electrode;
wherein a ratio (B/A) of the average particle diameter of said conduction assistant (A) to the average particle diameter of said positive electrode active material (B) is from 0.1 to 100, and said conduction assistant includes at least clustered amorphous carbon.
1 Assignment
0 Petitions
Accused Products
Abstract
To provide a lithium secondary battery excellent in output characteristic at a large current by realizing an electrode which does not inhibit diffusion of lithium ions in particles, and has high electron conduction and high electrolytic solution holding ratio for realizing a low resistance positive electrode.
A nonaqueous lithium secondary battery comprising a positive electrode which inserts/detaches lithium ions, and includes a collector on which a positive electrode active material for inserting/detaching lithium ions, a conduction assistant for increasing electric conduction of the positive electrode active material, and a binding agent for binding the positive electrode active material and the conduction assistant are applied, a negative electrode for inserting/detaching lithium ions, and a separator for separating the positive electrode and the negative electrode where a ratio (B/A) of an average particle diameter of the conduction assistant (A) to an average particle diameter of the positive electrode active material (B) is from 0.1 to 100, and the conduction assistant includes at least clustered amorphous carbon.
49 Citations
13 Claims
-
1. A nonaqueous lithium secondary battery comprising:
-
a positive electrode which inserts/detaches lithium ions, and includes a collector on which a positive electrode active material for inserting/detaching lithium ions, a conduction assistant for increasing electric conduction of said positive electrode active material, and a binding agent for binding said positive electrode active material and said conduction assistant are pasted;
a negative electrode for inserting/detaching lithium ions; and
a separator for separating said positive electrode and said negative electrode;
wherein a ratio (B/A) of the average particle diameter of said conduction assistant (A) to the average particle diameter of said positive electrode active material (B) is from 0.1 to 100, and said conduction assistant includes at least clustered amorphous carbon. - View Dependent Claims (6, 7, 8, 9, 10, 11, 12)
-
-
2. A nonaqueous lithium secondary battery comprising:
-
a positive electrode which inserts/detaches lithium ions, and includes a collector on which a positive electrode active material for inserting/detaching lithium ions, a conduction assistant for increasing electric conduction of said positive electrode active material, and a binding agent for binding said positive electrode active material and said conduction assistant are pasted;
a negative electrode for inserting/detaching lithium ions; and
a separator for separating said positive electrode and said negative electrode;
wherein said conduction assistant includes a mixture of clustered amorphous carbon where a ratio (B/A) of the average particle diameter of said conduction assistant (A) to the average particle diameter of said positive electrode active material (B) is from 0.1 to 100, and graphite carbon where the spacing of a surface d002 with surface index (002) by X-ray analysis is from 0.335 nm to 0.337 nm.
-
-
3. A nonaqueous lithium secondary battery comprising:
-
a positive electrode which inserts/detaches lithium ions, and includes a collector on which a positive electrode active material for inserting/detaching lithium ions, a conduction assistant for increasing electric conduction of said positive electrode active material, and a binding agent for binding said positive electrode active material and said conduction assistant are applied;
a negative electrode for inserting/detaching lithium ions; and
a separator for separating said positive electrode and said negative electrode;
wherein said positive electrode includes at least clustered amorphous carbon where a ratio (B/A) of an average particle diameter of said conduction assistant (A) to an average particle diameter of said positive electrode active material (B) is from 0.1 to 100, and carbon black. - View Dependent Claims (5)
-
-
4. A nonaqueous lithium secondary battery comprising:
-
a positive electrode which inserts/detaches lithium ions, and includes a collector on which a positive electrode active material for inserting/detaching lithium ions, a conduction assistant for increasing electric conduction of said positive electrode active material, and a binding agent for binding said positive electrode active material and said conduction assistant are applied;
a negative electrode for inserting/detaching lithium ions; and
a separator for separating said positive electrode and said negative electrode;
wherein said conduction assistant includes a mixture of clustered amorphous carbon where a ratio (B/A) of an average particle diameter of said conduction assistant (A) to an average particle diameter of said positive electrode active material (B) is from 0.1 to 100, graphite carbon where the spacing of a surface d002 with surface index (002) by X-ray analysis is from 0.335 nm to 0.337 nm, and carbon black.
-
-
13. An information machine which is loaded with, and driven by a secondary battery according to any one of claim
Specification