Secondary battery
AssigneeLG Energy Solution, Ltd.
InventorsYoung Jae KIM, Jung Woo YOO
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Abstract
The present invention provides a secondary battery including a negative electrode having a negative electrode active material layer containing a negative electrode active material, a positive electrode facing the negative electrode and having a positive electrode active material layer containing a positive electrode active material, a separator interposed between the negative electrode and the positive electrode, and an electrolyte, wherein the negative electrode active material includes a silicon-based active material and an N/P ratio calculated by a specific equation is 1.92 to 2.60.
Claims11
A secondary battery comprising:
- a negative electrode including a negative electrode active material layer containing a negative electrode active material;
- a positive electrode facing the negative electrode and including a positive electrode active material layer containing a positive electrode active material;
- a separator interposed between the positive electrode and the negative electrode;
- and
- an electrolyte, wherein:
- the negative electrode active material includes a silicon-based active material;
- and
- an N/P ratio calculated by Equation 1 below is 1.92 to 2.60,
- N/P ratio=Discharge capacity per unit area of negative electrode/Discharge capacity per unit area of positive electrode. [Equation 1]
Dependencies are inferred from the claim text.