A non-aqueous electrolyte for a lithium-ion battery and a lithium-ion battery. The non-aqueous electrolyte comprises unsaturated phosphate compounds and unsaturated cyclic carboxylic acid anhydride compounds. The unsaturated phosphate compounds have the structure illustrated in structural formula 4; structural formula 4: R.sub.13, R.sub.11, and R.sub.12 are independently selected from hydrocarbon groups having 1-5 carbon atoms respectively, and at least one of R.sub.13, R.sub.11, and R.sub.12 is an unsaturated hydrocarbon group containing double bonds or triple bonds; the unsaturated cyclic carboxylic acid anhydride compounds have the structure illustrated in structural formula 5; structural formula 5: R.sub.14 is independently selected from vinylidene having 2-4 carbon atoms or fluoro-substituted vinylidene. By means of the synergistic effect of two compounds, the non-aqueous electrolyte has excellent high-temperature cycling performance and storage performance, and also has lower impedance and good low-temperature performance. ##STR00001##

An electrolyte and a preparation method thereof and a lithium ion battery, where the electrolyte comprises the following components in percentages by mass: 10-20% of a lithium salt, 0.2-7% of an additive composition and a balance of a solvent; among them, the additive composition comprises a boron-containing lithium salt compound and a sulfur-based compound represented by Formula 1, in which R.sub.1 and R.sub.3 are each independently selected from hydrogen, halogen, or substituted or unsubstituted alkyl; R.sub.2 is selected from a substituted or unsubstituted alkylene, or is a direct bond; the boron-containing lithium salt compound is at least 0.1% by mass of the electrolyte. The electrolyte can significantly improve the performance of an SEI film, thereby facilitating increasing the cycle performance and storage performance of the lithium ion battery.

An electrolyte and a preparation method thereof and a lithium ion battery, where the electrolyte comprises the following components in percentages by mass: 10-20% of a lithium salt, 0.2-7% of an additive composition and a balance of a solvent; among them, the additive composition comprises a boron-containing lithium salt compound and a sulfur-based compound represented by Formula 1, in which R.sub.1 and R.sub.3 are each independently selected from hydrogen, halogen, or substituted or unsubstituted alkyl; R.sub.2 is selected from a substituted or unsubstituted alkylene, or is a direct bond; the boron-containing lithium salt compound is at least 0.1% by mass of the electrolyte. The electrolyte can significantly improve the performance of an SEI film, thereby facilitating increasing the cycle performance and storage performance of the lithium ion battery.

Provided herein is a compound of Formula (I-I), or a pharmaceutically acceptable salt thereof, wherein the variables are defined herein. Also provided herein are pharmaceutical compositions comprising a compound of Formula (I-I), and methods of using the compounds, e.g. in the treatment of CNS-related disorders. ##STR00001##

The present application relates to an electrolyte, an electrochemical device and an electronic device comprising the same. The electrolyte of the present application includes a cyclic N-containing sulfonyl-compound and at least one of vinylene carbonate, fluoroethylene carbonate, lithium tetrafluoroborate, lithium difluoro(oxalato)borate or lithium difluorophosphate. The electrolyte of the present application may further include a sulfur-oxygen double bond containing compound and a silicon-containing carbonate. Compared with the prior art, using the electrolyte provided by the present application can effectively improve the high-temperature storage, cycle performance and overcharge performance of an electrochemical device, such as a lithium-ion battery.

A non-aqueous electrolyte for a lithium-ion battery and a lithium-ion battery. The non-aqueous electrolyte includes an unsaturated phosphate compound and a cyclic unsaturated carboxylic anhydride compound. The unsaturated phosphate compound has a structure represented by structural formula (4). R.sub.13, R.sub.11 and R.sub.12 are each independently selected from a hydrocarbon group having 1 to 5 carbon atoms, and at least one of R.sub.13, R.sub.11 and R.sub.12 is an unsaturated hydrocarbon group having a double bond or a triple bond. The unsaturated cyclic carboxylic anhydride compound having a structure represented by Structural Formula 5. R.sub.14 is selected from the group consisting of an alkenylene group having 2 to 4 carbon atoms or a fluorinated alkenylene group having 2 to 4 carbon atoms. By means of the synergistic effect of two compounds, the non-aqueous electrolyte has excellent high-temperature cycling performance and storage performance, and also has lower impedance and good low-temperature performance. ##STR00001##

A non-aqueous electrolyte for a lithium-ion battery and a lithium-ion battery. The non-aqueous electrolyte includes an unsaturated phosphate compound and a cyclic unsaturated carboxylic anhydride compound. The unsaturated phosphate compound has a structure represented by structural formula (4). R.sub.13, R.sub.11 and R.sub.12 are each independently selected from a hydrocarbon group having 1 to 5 carbon atoms, and at least one of R.sub.13, R.sub.11 and R.sub.12 is an unsaturated hydrocarbon group having a double bond or a triple bond. The unsaturated cyclic carboxylic anhydride compound having a structure represented by Structural Formula 5. R.sub.14 is selected from the group consisting of an alkenylene group having 2 to 4 carbon atoms or a fluorinated alkenylene group having 2 to 4 carbon atoms. By means of the synergistic effect of two compounds, the non-aqueous electrolyte has excellent high-temperature cycling performance and storage performance, and also has lower impedance and good low-temperature performance. ##STR00001##

Provided is a novel production method capable of easily producing a cyclic disulfonic acid ester compound. This method for producing a cyclic disulfonic acid ester compound comprises reacting a specific sulfonic acid compound with a specific sulfuric acid ester compound.

Provided is a novel production method capable of easily producing a cyclic disulfonic acid ester compound. This method for producing a cyclic disulfonic acid ester compound comprises reacting a specific sulfonic acid compound with a specific sulfuric acid ester compound.

A non-aqueous electrolyte for a lithium-ion battery and a lithium-ion battery. The non-aqueous electrolyte includes an unsaturated phosphate compound and a cyclic unsaturated carboxylic anhydride compound. The unsaturated phosphate compound has a structure represented by structural formula (4). R.sub.13, R.sub.11 and R.sub.12 are each independently selected from a hydrocarbon group having 1 to 5 carbon atoms, and at least one of R.sub.13, R.sub.11 and R.sub.12 is an unsaturated hydrocarbon group having a double bond or a triple bond. The unsaturated cyclic carboxylic anhydride compound having a structure represented by Structural Formula 5. R.sub.14 is selected from the group consisting of an alkenylene group having 2 to 4 carbon atoms or a fluorinated alkenylene group having 2 to 4 carbon atoms. By means of the synergistic effect of two compounds, the non-aqueous electrolyte has excellent high-temperature cycling performance and storage performance, and also has lower impedance and good low-temperature performance.

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