Manufacturing method of negative electrode for nonaqueous electrolytic rechargeable battery, and nonaqueous electrolytic rechargeable battery using it

Abstract

A negative electrode for a nonaqueous electrolytic rechargeable battery capable of storing and discharging lithium ions is manufactured in the steps of forming a lithium metal layer on a carrier substrate by a gas phase method, superimposing the surface of the lithium metal layer formed on the carrier substrate on a negative electrode active material layer formed on a collecting body, storing the lithium metal layer into the negative electrode active material layer in nonaqueous electrolyte, and removing the carrier substrate from the negative electrode active material layer.

Description

BRIEF DESCRIPTION OF DRAWINGS

FIG. 1 is a sectional view of a nonaqueous electrolytic rechargeable battery in accordance with an exemplary embodiment of the present invention.

FIG. 2 is a sectional view of a negative electrode for the nonaqueous electrolytic rechargeable battery in accordance with the exemplary embodiment.

FIG. 3A, FIG. 3B, FIG. 3C, FIG. 3D and FIG. 3E are sectional views illustrating a manufacturing method of the negative electrode for the nonaqueous electrolytic rechargeable battery in accordance with the exemplary embodiment.

FIG. 4 is a sectional view illustrating the manufacturing method of the negative electrode for the nonaqueous electrolytic rechargeable battery in accordance with the exemplary embodiment in detail.

FIG. 5 is a sectional view illustrating another manufacturing method of the negative electrode for the nonaqueous electrolytic rechargeable battery in accordance with the exemplary embodiment.

FIG. 6 is a sectional view illustrating a manufacturing device of the negative electrode for the nonaqueous electrolytic rechargeable battery in accordance with the exemplary embodiment.

Claims

1. A manufacturing method of a negative electrode for a nonaqueous electrolytic rechargeable battery capable of storing and discharging lithium ions, the manufacturing method comprising: forming a lithium metal layer on a carrier substrate by a gas phase method;superimposing a whole surface of the lithium metal layer formed on the carrier substrate on a negative electrode active material layer formed on a collecting body;storing the lithium metal layer into the negative electrode active material layer in nonaqueous electrolyte; andremoving the carrier substrate from the negative electrode active material layer.

2. The manufacturing method of the negative electrode for the nonaqueous electrolytic rechargeable battery of claim 1, wherein the negative electrode active material layer includes negative electrode active material that has a theoretical capacity density exceeding 833 mAh/cm3, at least lithium ions being reversibly stored and discharged at the theoretical capacity density.

3. The manufacturing method of the negative electrode for the nonaqueous electrolytic rechargeable battery of claim 2, wherein silicon-containing material is used as the negative electrode active material.

4. The manufacturing method of the negative electrode for the nonaqueous electrolytic rechargeable battery of claim 3, wherein the silicon-containing material is a silicon-containing compound that contains at least oxygen.

5. The manufacturing method of the negative electrode for the nonaqueous electrolytic rechargeable battery of claim 4, wherein the silicon-containing compound is silicon oxide represented by SiOx (0.3≦x≦1.3).

6. The manufacturing method of the negative electrode for the nonaqueous electrolytic rechargeable battery of claim 2, wherein the negative electrode active material layer is formed of a plurality of separated columnar bodies on the collecting body.

7. A nonaqueous electrolytic rechargeable battery comprising: a negative electrode for a nonaqueous electrolytic rechargeable battery that is produced by the manufacturing method of the negative electrode for the nonaqueous electrolytic rechargeable battery of claim 1;a positive electrode for reversibly storing and discharging lithium ions; andnonaqueous electrolyte.