Method for manufacturing electricity storage device and electricity storage device obtained using said method

Abstract

In order to obtain a novel electricity storage device with sufficient battery performance without the need for cumbersome work of predoping an electrode with lithium ions, provided is a method for manufacturing an electricity storage device having an electrolyte layer (3) and a positive electrode (2) and a negative electrode (4) facing each other and sandwiching the electrolyte layer (3). The method is provided with a step in which the positive electrode (2) is formed by steps a through c described hereinafter and a step in which the negative electrode (4) is formed by step d described hereinafter. a. A step in which (X), described hereinafter, is put in a reduced dedoped state. b. A step in which the anions in (Y), described hereinafter, are compensated by counterions. c. A step in which the positive electrode (2) is formed using at least the (X) in a reduced dedoped state, obtained through the above-described step a, and the (Y) in a compensated state, obtained through the above-described step b. d. A step in which the negative electrode (4) is formed using (Z), described hereinafter, in an undoped state. (X) A positive electrode active material in a doped state, the conductivity of which changes according to the insertion and desorption of ions. (Y) An anionic material. (Z) A negative electrode active material capable of ion insertion and desorption.

Description

technical field [0001] The present invention relates to a method for manufacturing an electrical storage device and an electrical storage device obtained therefrom, and more particularly, to a method for manufacturing a novel electrical storage device having sufficient battery performance without the need for troublesome operations of predoping electrodes with lithium ions And a power storage device obtained therefrom. Background technique [0002] In recent years, with the advancement and development of electronic technologies such as laptop computers, mobile phones, and portable data terminals (PDAs), secondary batteries that can be repeatedly charged and discharged have been widely used as power storage devices for these electronic devices. In such electrochemical storage devices such as secondary batteries, it is desired to increase the capacity of materials used as electrodes. [0003] The electrodes of the electricity storage device contain an active material capable ...

AI Technical Summary

Problems solved by technology

Therefore, when a carbon material capable of intercalating and deintercalating lithium ions is used as the negative electrode active material, it is impossible to constitute a rocking-chair type secondary battery of a cation transfer type in which cations move between both electrodes during charge and discharge.

The rocking chair type secondary battery has the advantage that it can be used even with a small amount of electrolyte solution, but the above-mentioned secondary battery having a conductive polymer as the positive electrode active material is not possible and cannot contribute to the miniaturization of the power storage device

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