Secondary battery

摘要

A secondary battery includes: a case; and an electrode assembly accommodated in the case and including a positive electrode plate, a negative electrode plate, and a separator between the positive and negative electrode plates. At least one of the positive and negative electrode plates includes: a first sub-electrode plate including a first coating surface coated with an active material and a first non-coating surface facing oppositely away from the first coating surface and not coated with the active material; and a second sub-electrode plate including a second coating surface coated with an active material and a second non-coating surface facing oppositely away from the second coating surface and not coated with the active material. The first non-coating surface of the first sub-electrode plate faces the second non-coating surface of the second sub-electrode plate to allow the first and the second sub-electrode plates to slip relative to each other.

主权项

1. A secondary battery comprising:
a case; and an electrode assembly accommodated in the case and comprising a positive electrode plate, a negative electrode plate, and a separator between the positive and negative electrode plates, wherein at least one of the positive and negative electrode plates comprises: a first sub-electrode plate comprising a first coating surface coated with an active material and a first non-coating surface facing oppositely away from the first coating surface and not coated with the active material; and a second sub-electrode plate comprising a second coating surface coated with an active material and a second non-coating surface facing oppositely away from the second coating surface and not coated with the active material, wherein the first non-coating surface of the first sub-electrode plate faces the second non-coating surface of the second sub-electrode plate.