Abstract: A device and apparatus for mixing and dispersing a solid and a liquid are provided. The device includes a powder pulverizing mechanism fixedly connected to a main shaft. The powder pulverizing mechanism is located in a powder feed chamber. The powder feed chamber is provided with a powder feed port. A liquid feed chamber is arranged on an outer side of the powder feed chamber. The liquid feed chamber is provided with a liquid feed port, and the liquid feed chamber is provided therein with a dispersing mechanism fixedly connected to the main shaft. A lower portion of the liquid feed chamber and a lower portion of the powder feed chamber are separately in communication with an upper portion of a mixing chamber. The mixing chamber is provided therein with an impeller fixedly connected to the main shaft.

Abstract: Provided is a pulping device. The pulping device includes a housing, a drive shaft, and an impeller assembly. The housing defines a cavity. The impeller assembly is disposed in the cavity and is configured to be driven to rotate by the drive shaft. A bottom surface of the impeller assembly is disposed opposite to an end surface of the housing, and one of the bottom surface of the impeller assembly or the end surface of the housing is provided with an annular protrusion, and the other one of the bottom surface of the impeller assembly or the end surface of the housing defines an annular groove matching the annular protrusion, and an interference-proof clearance is defined between an outer wall of the annular protrusion and an inner wall of the annular groove.

Abstract: Provided are a mixing impeller and pulping device. The mixing impeller includes an impeller body, the impeller body defines, at a bottom end of the impeller body, a cavity extending to a top end of the impeller body, and the impeller body defines an overflow hole in communication with the cavity at a side wall of the impeller body.

Abstract: To solve the problem that the existing non-aqueous electrolyte for a lithium ion battery cannot ensure the high-temperature storage performance and cycle performance at the same time, the invention provides a non-aqueous electrolyte for a lithium ion battery, comprising a solvent, a lithium salt and a compound represented by structural formula 1 and/or structural formula 2: Meanwhile, the invention also discloses a lithium ion battery comprising the non-aqueous electrolyte for a lithium ion battery. The non-aqueous electrolyte provided by the invention can effectively improve the cycle performance and high-temperature storage performance of lithium ion batteries.

Abstract: Provided is a polymer electrolyte for lithium ion battery and a polymer battery, comprising polyether polymer and lithium salt, wherein the molar ratio of lithium ions in the lithium salt to oxygen atoms in ether bonds of the polyether polymer is more than 1/4; the polyether polymer comprises polymer of Formula 1: A-Rn; A is a hydrocarbyl group or an oxygen-containing hydrocarbyl group, n is an integer, and n?1; R is Ra and Rb are selected from alkylene, and Rx is selected from organic functional groups and halogen; m1 is a natural number greater than 0, n1 is a natural number, and when n1 is 0, n?3. Preferably, the ratio of the total number of carbon atoms in all repeating units of the polyether polymer to the total number of repeating units is over 4; More preferably, the polyether polymer has a branched structure.

Abstract: The present application discloses an impeller assembly and a mixing apparatus, and relates to the technical field of solid and liquid mixing devices. The impeller assembly includes an impeller structure and a housing structure. The impeller structure includes a body, and a surface of the body is provided with a plurality of backward-skewed blades. A blade angle of each backward-skewed blade on any flow plane first decreases progressively and then increases progressively from an inlet to an outlet. A first baffle is disposed on a lower portion of the body. The housing structure includes a second baffle. The first baffle is provided with first guide slots, and the second baffle is provided with second guide slots. A fluid enters from the inlet at an upper portion of the body, flows along the surface of the body, and flows out through the outlet at a lower portion of the body and through the first guide slots and the second guide slots.

Abstract: Provided is a non-aqueous electrolyte, comprising a solvent, a lithium salt, an additive A and an additive B, the additive A is selected from compound represented by structural formula 1, and the additive B is selected from one or more of compounds represented by structural formula 2 and structural formula 3: R1 is an alkenyl with 2-5 carbon atoms or an alkynyl with 2-5 carbon atoms, R2 is a fluoroalkyl with 1-5 carbon atoms, R3 is an alkyl with 1-4 carbon atoms, an aryl with 6-10 carbon atoms, an alkenyl with 2-5 carbon atoms, an alkynyl with 2-5 carbon atoms or a fluoroalkyl with 1-5 carbon atoms. Meanwhile, the invention also discloses a lithium ion battery comprising the non-aqueous electrolyte. The non-aqueous electrolyte provided by the invention can effectively give consideration to both high and low temperature performances of the battery.

Abstract: A device and apparatus for mixing and dispersing a solid and a liquid are provided. The device includes a powder pulverizing mechanism fixedly connected to a main shaft. The powder pulverizing mechanism is located in a powder feed chamber. The powder feed chamber is provided with a powder feed port. A liquid feed chamber is arranged on an outer side of the powder feed chamber. The liquid feed chamber is provided with a liquid feed port, and the liquid feed chamber is provided therein with a dispersing mechanism fixedly connected to the main shaft. A lower portion of the liquid feed chamber and a lower portion of the powder feed chamber are separately in communication with an upper portion of a mixing chamber. The mixing chamber is provided therein with an impeller fixedly connected to the main shaft.

Abstract: In order to solve the problems of insufficient high-temperature storage performance and high-temperature cycle performance of the existing lithium ion battery, the present application provides a non-aqueous electrolyte for lithium ion battery, comprising a bicyclic sulfate compound and a compound A represented by structural formula 1. In structural formula 1, R3, R4, R5, R6, R7 and R8 are each independently selected from hydrogen, fluorine atom or a group containing 1˜5 carbon atoms. Meanwhile, the application also discloses a lithium ion battery comprising the non-aqueous electrolyte for lithium ion battery. The non-aqueous electrolyte for lithium ion battery provided by the application is beneficial to improving high-temperature storage and high-temperature cycle performance of battery.

Abstract: The application provides a non-aqueous electrolyte for lithium ion battery. The non-aqueous electrolyte for lithium ion battery comprises a compound A represented by formula I and a compound B represented by formula II, In formula I, R1, R2 and R3 are independently selected from C1-C5 alkyl or haloalkyl, C2-C5 unsaturated hydrocarbon group or unsaturated halohydrocarbon group, and at least one of R1, R2 and R3 is the unsaturated hydrocarbon group or unsaturated halohydrocarbon group; In formula II, R4, R5, R6, R7, R8 and R9 are each independently selected from one of hydrogen atom, fluorine atom and C1-C5 group. The non-aqueous electrolyte for lithium ion battery provided by the application enables the battery to have excellent cycle performance and high-temperature storage performance through the synergistic effect of the compound A and the compound B.

Abstract: 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). R13, R11 and R12 are each independently selected from a hydrocarbon group having 1 to 5 carbon atoms, and at least one of R13, R11 and R12 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. R14 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.

Abstract: An impeller assembly for a solid-liquid mixing device, which includes an impeller body, multiple mixing blades which are evenly distributed on the inner side of the impeller body and extended outwards from the shaft of the impeller body, and at least two baffle plates being disposed on the outer side of the impeller body along a radial direction thereof outwards and disposed in the circumferential direction of the impeller body. At least one pair of adjacent two baffle plates satisfies following conditions: curves projected by two opposite surfaces of each of adjacent baffle plates on a cross section of the impeller at any height are smooth curves, and at least one of the curves is not fully included in a circle with the center of the shaft as its center.

Abstract: In order to solve the problem of insufficient cycle performance and high-temperature storage performance of the existing non-aqueous electrolyte for lithium ion battery containing maleic anhydride copolymer, the application provides a non-aqueous electrolyte for lithium ion battery. The non-aqueous electrolyte for lithium ion battery comprises a compound A represented by formula I and a compound B represented by formula II, In formula I, R7 and R8 are independently selected from one of hydrogen atom, halogen atom, —O—R9 or aryl, wherein n is a positive integer and R9 is a C1-C4 alkyl group; In formula II, R1, R2, R3, R4, R5 and R6 are each independently selected from one of hydrogen atom, fluorine atom and C1-C5 group. The non-aqueous electrolyte for lithium ion battery provided by the invention can improve the cycle stability and high-temperature storage performance of the battery through the effections of compound A and compound B.

Abstract: In order to overcome the problems of influence of residual moisture, poor cycle performance and poor high-temperature storage performance in the existing lithium ion battery, the application provides a non-aqueous electrolyte for lithium ion battery, comprising a solvent, lithium salt and maleic anhydride copolymer, wherein the weight-average molecular weight of the maleic anhydride copolymer is less than or equal to 500,000; Furthermore, the percentage mass content of the maleic anhydride copolymer is 0.5% or more based on the total mass of the non-aqueous electrolyte being 100%. Meanwhile, the application also provides a lithium ion battery comprising the non-aqueous electrolyte. The non-aqueous electrolyte provided by the application is added with maleic anhydride copolymer with a content of more than 0.5% and a weight-average molecular weight of less than 500,000, so that the high-temperature storage and cycle performances of the lithium ion battery are effectively improved.

Abstract: 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). R13, R11 and R12 are each independently selected from a hydrocarbon group having 1 to 5 carbon atoms, and at least one of R13, R11 and R12 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. R14 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.

Abstract: Provided is a non-aqueous electrolyte for lithium ion battery, comprising a compound A represented by structural formula I and a compound B represented by structural formula II: Wherein, in formula I, R1 is selected from alkylene having 1-5 carbon atoms or fluorine substituted alkylene having 1-5 carbon atoms; R2 is selected from anyone of alkylene having 1-5 carbon atoms, fluorine substituted alkylene having 1-5 carbon atoms or carbonyl; In formula II, R3, R4, R5, R6, R7 and R8 are each independently selected from hydrogen, fluorine atom or a group containing 1-5 carbon atoms. The compound A and compound B of the non-aqueous electrolyte can form a passivation film formed by reduction, decomposition and combination reactions on the surface of negative electrode material of lithium-ion battery, thereby improving thermal stability of the passivation film and high-temperature cycle and storage performance of the battery.

Abstract: To solve the problems that the existing non-aqueous electrolyte for lithium ion battery containing fluorinated solvent generates serious gas expansion when improving high-temperature cycle performance and affects high-temperature safety performance of battery. The application provides a non-aqueous electrolyte for lithium ion battery. The non-aqueous electrolyte for lithium ion battery comprises a compound A and a compound B, wherein the compound A is at least one of compounds represented by the following structural formula I, formula II and formula III; the compound B is a compound represented by the following structural formula IV; formula I: R1—COO—R2; formula II: R3—OCOO—R4.

Abstract: Provide is a non-aqueous electrolyte for lithium ion battery, comprising a compound represented by structural formula I: In formula I, R1, R2, R3 and R4 are each independently selected from hydrogen atom, fluorine atom, cyano group, hydrocarbyl group or halogenated hydrocarbyl group having 1-5 carbon atoms, oxygen-containing hydrocarbyl group having 1-5 carbon atoms, silicon-containing hydrocarbyl group having 1-5 carbon atoms, X is a —O—R5—CN group, R5 is a hydrocarbyl group or a halogenated hydrocarbyl group having 1-5 carbon atoms, m, n, z and y are integers of 0 or 1, and m+n+y+z?0. When the non-aqueous electrolyte is used for lithium ion battery, the decomposition of electrolyte on the surface of electrode can be inhibited, and the high-temperature storage performance is improved with less gas generation and small expansion rate, therefore the high-temperature cycle performance and high-temperature storage performance of the battery are effectively improved.

Abstract: 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: R13, R11, and R12 are independently selected from hydrocarbon groups having 1-5 carbon atoms respectively, and at least one of R13, R11, and R12 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: R14 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.

Abstract: A lithium-ion battery non-aqueous electrolyte and a lithium-ion battery. The non-aqueous electrolyte comprises at least one selected from the compounds represented by structural formula I and II; in formula I, R1 and R2 are independently selected from alkenyl having 2-5 carbon atoms and alkynyl having 2-5 carbon atoms; in formula II, R3 is selected from alkenyl having 2-5 carbon atoms and alkynyl having 2-5 carbon atoms.