The lithium salt dissolves in the solvent. The lithium salt is composed of a lithium ion and an anion. As the solvent, a non-aqueous solvent is used. The non-aqueous electrolyte contains a lithium salt and a solvent. The non-aqueous electrolyte has lithium ion conductivity. The lithium secondary battery according to the embodiment comprises a cathode, an anode, and a non-aqueous electrolyte having lithium ion conductivity. Hereinafter, the lithium secondary battery according to the embodiment according to the present disclosure will be described with reference to the drawings.
CATHODE ANODE BATTERY FULL
1A in a full discharge state of the lithium secondary battery. 1B shows an enlarged cross-sectional view taken along the line 1B included in FIG. 1A shows a vertical cross-sectional view of a lithium secondary battery according to the embodiment.įIG. The lithium secondary battery according to the present disclosure is excellent in a cycle characteristic. The fluorinated ether has a fluorination ratio of more than 0% and not more than 60%. The solvent includes a fluorinated ether and The non-aqueous electrolyte contains a solvent and a lithium salt The lithium metal is dissolved from the surface of the anode in the non-aqueous electrolyte during discharge of the lithium secondary battery The lithium secondary battery according to the present disclosure comprises:Ī non-aqueous electrolyte having lithium ion conductivity,Ī lithium metal is precipitated on a surface of the anode during charge of the lithium secondary battery The present disclosure provides a lithium secondary battery excellent in a cycle characteristic. Japanese Patent Application Publication No.
![cathode anode battery cathode anode battery](https://www.mdpi.com/sustainability/sustainability-11-02363/article_deploy/html/images/sustainability-11-02363-g002.png)
Patent Literature 2 discloses a lithium secondary battery comprising a non-aqueous electrolyte provided by dissolving a lithium salt in a solvent such as ethylene carbonate or diethyl carbonate. As a result, the cycle characteristic is easily lowered.
![cathode anode battery cathode anode battery](https://cdn.slidesharecdn.com/ss_thumbnails/globallithiumionbatterymarketcathodeanodeandelectrolyticsolution-industryanalysissizesharegrowthtren-131128061305-phpapp02-thumbnail-4.jpg)
Since the lithium metal has a high reduction ability, a side reaction occurs easily between the lithium metal and the non-aqueous electrolyte. On the other hand, in the lithium secondary battery, a lithium metal is precipitated on the anode during the charge. Patent Literature 1 discloses adding a nitrile compound to a non-aqueous electrolyte to improve a battery characteristic such as a cycle characteristic in a lithium ion battery. On the other hand, during the discharge, the lithium metal is dissolved in a non-aqueous electrolyte. In the lithium secondary battery, a lithium metal is precipitated on the anode thereof during the charge. More specifically, the present disclosure relates to improvement of a non-aqueous electrolyte in the lithium secondary battery. The present disclosure relates to a lithium secondary battery in which a lithium metal is used as an anode active material.