Abstract: The present application discloses a rechargeable lithium battery apparatus, comprising a battery cell in a cylindrical shape, a positive electrode of the battery cell has a protection circuit board arranged, wherein, between the positive electrode of the battery cell in the cylindrical shape and a positive electrode of the protection circuit board, there is a metal screw connection structure arranged, acting as the positive electrode of the protection circuit board, connecting electrically to the positive electrode of the battery cell. The rechargeable lithium battery apparatus of the present application, due to adopting a metal screw connection structure arranged on a circuit board at the positive electrode of the battery, corresponding to the positive electrode of the battery cell, achieves a positive electrode cap and a solid connection between the protection circuit board and the battery cell, forming a brand new lithium battery apparatus.

Abstract: The present invention discloses an integrally-formed rechargeable battery and a production method thereof. The integrally-formed rechargeable battery includes an integrally-formed metal sleeve, which serves as a negative electrode conductor of the lithium battery. The integrally-formed metal sleeve is a cylindrical case, an end surface of one side of the integrally-formed metal sleeve is of a closed structure, and an end surface of the other side of the integrally-formed metal sleeve is an annular portion with a hole in the middle, A cell assembly is installed within the integrally-formed metal sleeve. The cell assembly includes a cell, a circuit board, an exposed charging interface and a positive electrode conductor. The positive electrode conductor is exposed from the hole in the middle of the annular portion.