Secondary battery

A secondary battery and electrolyte technology, which is applied to secondary batteries, lithium batteries, battery electrodes, etc., can solve the problems of short charge and discharge life and poor energy efficiency, and achieve the effect of long charge and discharge life and good energy efficiency
CN105849967AActive Publication Date: 2016-08-10KYOTO UNIV +2
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
KYOTO UNIV
Publication Date
2016-08-10

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Abstract

The purpose of the present invention is to provide a secondary battery which has a small difference between the voltage during discharging and the voltage during charging, thereby having good energy efficiency, and which has a long charging / discharging life. In order to achieve the above-described purpose, a secondary battery of the present invention, which comprises a positive electrode, a negative electrode and an electrolyte solution, is characterized in that: at least one electrode (11), namely the positive electrode and / or the negative electrode contains, as an active material (12), at least one substance that is selected from the group consisting of metal ion-containing fluorides, metal oxides, metal sulfides, metal nitrides and metal phosphides; an electrolyte solution (13) contains an anion receptor; and the electrode active material (12) is able to be dissolved in the electrolyte solution (13) by having the anion receptor form a salt or a complex together with anions contained in the electrode active material (12).
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Description

technical field

[0001] The present invention relates to secondary batteries. Background technique

[0002] As a feature of a battery using a metal fluoride as an active material, for example, it is possible to use a conversion reaction. As such a battery, there is known, for example, a lithium ion battery in which the cation in the electrolytic solution is Li + . A lithium ion battery using a conversion reaction can obtain, for example, a capacity two to three times that of a lithium ion battery using a normal insertion reaction (for example, Non-Patent Document 1).

[0003] prior art literature

[0004] non-patent literature

[0005] Non-Patent Document 1: Linsen Li, Fei Meng, and Song Jin, "High-Capacity Lithium-Ion Battery Conversion Cathodes Based on Iron Fluoride Nanowires and Insights into the Conversion Mechanism", Nano Lett., 2012, 12(11), pp 6030 -6037 Contents of the invention

[0006] The problem to be solved by the invention

[0007] However, such a batt...

Claims

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