100results about "Organic electrolyte cells" patented technology

The invention discloses a fluorine ion stabilizer, a lithium carbon fluoride battery electrolyte and a lithium carbon fluoride battery, and belongs to the field of lithium batteries. The fluorine ion stabilizer is prepared from a 1-ethyl-3-methylimidazole cation compound and an alcohol compound; the alcohol compound is selected from at least one of ethylene glycol and polyethylene glycol; the molecular weight of the polyethylene glycol is 62 to 3000. The binding energy of the fluorine ion stabilizer and fluorine ions is low, a solvation product can be stabilized, the final discharge product of the Li / CFx battery is changed, and finally the purpose of reducing the heat produced in the discharge process of the battery is achieved.

To provide a sheet-like lithium primary battery having an excellent storage characteristic, and a manufacturing method for the same.SOLUTION: A sheet-like lithium primary battery of the present invention, is formed by housing a negative electrode, a positive electrode, a separator, and a non-aqueous electrolyte that contain a lithium or a lithium alloy in an outer casing constructed by a laminate film having a heat deposition resin layer. A volume of a gas increased in a battery when it is stored for 30 days under an atmosphere of 70°C and 90% of a relative humidity, and is 20% of a content volume in the battery before the storage. A manufacturing method of the sheet-like lithium primary battery of the present invention, includes: a temporal sealing step of sealing a power generation element in an outer housing; a preparation discharge step of discharging one part of a capacitance provided in a temporal assembly; a storage step of holding the temporal assembly in a heating state; a degasification step of opening a part of the outer casing after that, and removing a gas in an inner part; and a main sealing step of sealing the outer casing after the degasification step.SELECTED DRAWING: Figure 4

Provided in the present application are a button lithium primary battery and a preparation method therefor, and an electronic device. The button lithium primary battery comprises a battery casing (10) and a battery cell assembly located inside the battery casing (10), wherein the battery cell assembly comprises a negative electrode (3), a negative-electrode modification membrane (4), separators (5, 6) and a positive electrode (7), which are sequentially stacked; a recess (9) is provided on the surface of the side of the negative electrode (3) that is close to the negative-electrode modification membrane (4); and the negative-electrode modification membrane (4) is tightly embedded in the recess (9). By means of optimizing the structure and the material of the button lithium primary battery in the present application, the button lithium primary battery has an excellent discharge performance, and good levels of stability and reliability.

To provide a composition for an electrolyte capable of suppressing gas generation during high-temperature storage, and to provide an electrochemical device, a secondary battery and a lithium ion secondary battery using the composition for the electrolyte.SOLUTION: The composition for an electrolytic solution contains a compound (A) represented by formula (A). (A) Rf1-O-CH2-CH2-O-R1 (wherein Rf1 is a fluoroalkyl group having 1 to 6 carbon atoms, and R1 is H, Li, Na, K or Cs); ) SELECTED DRAWING: None

A lithium primary battery including: a positive electrode; a negative electrode; a separator disposed between the positive electrode and the negative electrode; and a non-aqueous electrolyte solution, in which the positive electrode contains a positive electrode active material and a conductive material, the positive electrode active material contains at least one of manganese dioxide and graphite fluoride, the conductive material contains carbon black, the carbon black contains a metal element in an amount of 0.02 atomic % or more and 0.4 atomic % or less, the negative electrode contains a lithium alloy, the lithium alloy contains magnesium, and the content of the magnesium in the lithium alloy is 0.01 mass % or more and 11 mass % or less.

The invention provides a lithium primary battery negative electrode with deep sea pressure bearing capacity and a preparation method thereof, and belongs to the technical field of deep sea lithium primary battery manufacturing, the lithium primary battery negative electrode comprises a negative electrode current collector, a lithium layer is arranged on the surface of the negative electrode current collector through electrochemical plating lithium, the surface of the lithium layer is coated with an SEI film layer, and an electroplating electrolyte of electrochemical plating lithium comprises a lithium salt and a solvent, the lithium salt comprises LiPF6, and the solvent comprises DMC. According to the present invention, with the electrochemical lithium plating method, the compact metal lithium layer can be deposited on the surface of the negative electrode current collector, and the metal lithium layer prepared through the method can maintain the close connection with the negative electrode current collector in the 0-127 MPa hydrostatic pressure environment, and can maintain the pressure resistance stability between the metal lithium layer and the SEI film in the pressure environment.

The disclosed lithium primary battery is provided with a positive electrode, a negative electrode, and a non-aqueous electrolyte solution. The positive electrode contains a positive electrode mixture, and the positive electrode mixture contains LixMnO2 (0 < = x < = 0.05) and a boron compound. The amount of boron atoms contained in the positive electrode mixture is from 0.01 parts by mass to 1.65 parts by mass (inclusive) per 100 parts by mass of manganese atoms contained in the positive electrode mixture. The negative electrode contains an alloy containing lithium and magnesium. The content of lithium in the alloy exceeds 88% by mass, and the content of magnesium in the alloy is 0.01-10% by mass (inclusive).

A lithium primary battery including a wound electrode group, and a nonaqueous electrolyte solution. The electrode group includes a positive electrode having a belt shape, and a negative electrode having a belt shape, which are spirally wound with a separator disposed between the positive electrode and the negative electrode. The positive electrode contains both manganese dioxide and fluorinated graphite. The negative electrode includes a lithium alloy. The lithium alloy contains magnesium, and the content of the magnesium in the lithium alloy is 0.01 mass% or more and 11 mass% or less.

This lithium primary battery is provided with a positive electrode, a negative electrode, and a non-aqueous electrolyte solution. The positive electrode contains a positive electrode mixture that contains manganese dioxide and an oxide of a metal Me. The metal Me has a valence of 2 or more, an ion radius of 0.8 or less, and an electronegativity of 1.65 or less. The amount of the oxide of the metal Me contained in the positive electrode mixture is 0.1-5 parts by mass per 100 parts by mass of the manganese dioxide contained in the positive electrode mixture. The negative electrode contains an alloy containing lithium and magnesium. The content of lithium in the alloy is greater than 88% by mass, and the content of magnesium in the alloy is 0.01-10% by mass (inclusive).

A lithium primary battery includes a positive electrode, a negative electrode, a separator disposed between the positive electrode and the negative electrode, and a nonaqueous electrolyte solution. The positive electrode includes manganese dioxide, and the negative electrode includes a lithium alloy. The lithium alloy contains magnesium in an amount of 0.02 mass% or more and 11 mass% or less. A ratio N / P of a capacity N of the negative electrode to a capacity P of the positive electrode is 0.85 or more and 1.00 or less.

A lithium primary battery includes a positive electrode, a negative electrode, and a liquid non-aqueous electrolyte. The positive electrode contains a positive electrode material mixture including LixMnO2 where 0≤x≤0.05. The negative electrode contains at least one of metal lithium and a lithium alloy. The liquid non-aqueous electrolyte contains a cyclic imide component and an organic silyl borate component. The concentration of the cyclic imide component in the liquid non-aqueous electrolyte is 1 mass % or less, the concentration of the organic silyl borate component in the liquid non-aqueous electrolyte is 5.5 mass % or less, and the mass ratio of the cyclic imide component to the organic silyl borate component contained in the liquid non-aqueous electrolyte is 0.02 or more and 10 or less.

The present invention relates to: a nonaqueous electrolyte solution which contains an electrolyte salt and a phosphonic acid ester that is represented by general formula (I), and which satisfies at least one of the condition (A) and the condition (B) described below; and a power storage device which comprises a positive electrode, a negative electrode and the nonaqueous electrolyte solution. (In general formula (I), R1 represents an alkyl group, and each of R2 and R3 independently represents an alkynyl group having 3 to 6 carbon atoms.) Condition (A): In the formula, R1 is an alkyl group having 1 to 5 carbon atoms; at least one selected from among an anion-containing compound having an S=O bond and an S=O group-containing compound (excluding the anion-containing compound having an S=O bond) is additionally contained; and if (A1) is the content of a compound represented by general formula (I) on a mass basis, (A2) is the content of an anion-containing compound having an S=O bond on a mass basis, and (A3) is the content of an S=O group-containing compound on a mass basis, at least one of [(A1) / (A2) is 0.001 to 10], and [(A1) / (A3) is 0.001 to 1.5], is satisfied. Condition (B): In the formula, R1 is a branched alkyl group having 3 to 6 carbon atoms; and a carbon atom adjacent to a phosphorus atom is a secondary carbon atom or a tertiary carbon atom.

To provide a lithium primary button type battery having excellent discharge performance, good stability and reliability, its manufacturing method, and an electronic apparatus.SOLUTION: A lithium primary button battery comprises a battery case and a battery core module located inside the battery case, the battery core module comprises a negative electrode (3), a negative electrode modification membrane (4), a separator (5, 6) and a positive electrode (7) which are sequentially stacked, a surface of the negative electrode (3) close to the negative electrode modification membrane (4) is provided with a concave groove (9), and the negative electrode modification membrane (4) is tightly embedded in the concave groove (9).SELECTED DRAWING: Figure 2

A lithium primary battery includes a positive electrode, a negative electrode, and a nonaqueous electrolyte. The positive electrode contains manganese dioxide. The negative electrode includes a first lithium layer and an aluminum layer laminated with the first lithium layer. The first lithium layer is an alloy layer containing lithium and magnesium. The content of the lithium in the alloy layer is 89% by mass or more and 99.98% by mass or less. The content of the magnesium in the alloy layer is 0.02% by mass or more and 1.5% by mass or less.

A negative electrode mixture layer (12b) has an extension section (38) that extends to the winding starting side from the winding inside of a starting end (40) on the winding starting side of a positive electrode (11). A first distance (d1) between the center (40a) of the starting end (40) in the width direction and a mixture layer starting end (50) on the winding starting side of the negative electrode mixture layer (12b) is greater than at least one of a second distance (d2) between one end (40b) of the starting end (40) in the width direction and the mixture layer starting end (50), and a third distance (d3) between the other end (40c) of the starting end (40) in the width direction and the mixture layer starting end (50).

A lithium primary battery includes a positive electrode, a negative electrode, and an electrolyte solution. The positive electrode contains at least one selected from the group consisting of manganese dioxide and fluorinated graphite. The negative electrode includes a lithium alloy. The lithium alloy contains magnesium, and the content of the magnesium in the lithium alloy is 10 mass% or less. The electrolyte solution contains a nonaqueous solvent, a solute, and an additive. The additive includes at least one selected from the group consisting of an oxalate-borate complex component and an oxalate-phosphate complex component.

The invention discloses a lithium carbon fluoride battery electrolyte, a preparation method thereof and a lithium carbon fluoride battery, and belongs to the technical field of lithium / carbon fluoride primary batteries. The lithium carbon fluoride battery electrolyte comprises a lithium salt and a monofluoro-substituted short-chain ether solvent. Compared with a non-fluorinated ether solvent, the monofluoroether solvent has good compatibility with a carbon fluoride positive electrode and a metal lithium negative electrode, so that the battery has good discharge performance. Compared with a polyfluoro-substituted ether solvent, the monofluoro substituent group (-CH2F) obviously improves the ionic conductivity of the lithium carbon fluoride battery electrolyte at low temperature, and meanwhile, the monofluoro substituent group (-CH2F) has weak solvation energy at low temperature, so that the discharge platform of the battery at low temperature is obviously improved, and the discharge capacity of the battery is improved.

A purpose of the present invention is to provide a method for manufacturing, etc., a member for an electrochemical device in which the problem of unavoidable change in the composition of the electrochemical device due to solvent depletion, moisture absorption, etc., during manufacturing of the electrochemical device is unlikely to occur. This method for manufacturing a member for an electrochemical device includes performing at least one molding operation disclosed in the present specification on a formation material composition that: includes at least one filling agent (F), a plasticizer (P-S) that is water, an ionic liquid, or a mixture of these, and a polymer (P1); does not substantially include an organic solvent; and has plasticity and is self-supporting.

A nonaqueous liquid electrolyte includes a solute, a nonaqueous solvent, and an isophorone diisocyanate component. The isophorone diisocyanate component includes a cis-isophorone diisocyanate compound and a trans-isophorone diisocyanate compound. The mass ratio cis / trans of the cis-isophorone diisocyanate compound to the trans-isophorone diisocyanate compound is 35 / 65 or more and 96 / 4 or less.

This invention provides a novel method for manufacturing fluorinated carboxylate compounds, for producing formula (P1): (B 1f ) mp (A) 1 ) np [B] 1f RfCOO; Rf is a hydrocarbon group having one or more fluorine atoms; A 1 It is a group other than H; mp is (A 1 The valence of () × np and is 1 or 2; np is mp / (A 1 The valence of A is 1; 1 The method of manufacturing a compound having a valence of 1 or 2 includes: making formula (S1): (B 1f (R) 1 ) [R 1 The compound shown is an organic group and is related to formula (S2): (A 1 ) ms2 (B) 2 ) ns2 [B] 2 It is OH, CO3 or HCO3; ms2 is (B 2 (valence) × ns2 / (A) 1 The valence of ns is 1 or 2; ns2 is (A 1 (value) × ms² / (B) 2 The reaction of the compound or its hydrate shown in the figure (with a valence of 1 or 2) is a step A.

A lithium primary battery includes a positive electrode, a negative electrode, and a nonaqueous electrolyte solution. The positive electrode includes a positive electrode mixture. The positive electrode mixture includes LixMnO2 where 0 ≤ x ≤ 0.05, and a sulfate. The amount of sulfur atoms contained in the positive electrode mixture is 1.6 parts by mass or less per 100 parts by mass of manganese atoms contained in the positive electrode mixture. The negative electrode includes an alloy containing lithium and magnesium. The content of the lithium in the alloy is more than 88 mass%, and the content of the magnesium in the alloy is 0.01 mass% or more and 10 mass% or less.

To provide a battery cell that improves cycle characteristics and reduces the increase in expansion force. [Solution] The battery cell includes a shell, an electrode assembly, and a buffer member. The shell includes two first side walls arranged opposite to each other along a first direction, the distance between the two first side walls in the first direction being D1. The electrode assemblies are housed within the shell. There are M electrode assemblies, where M is a positive integer greater than 0. In a fully charged state, the sum of the sizes of the M electrode assemblies along the first direction is D2. The buffer members are housed within the shell. There are N buffer members, where N is a positive integer greater than 0. The N buffer members and the M electrode assemblies are stacked along the first direction. The buffer members are configured to be compressible, and the sum of the sizes of the N buffer members in an uncompressed state along the first direction is D3. D1, D2, and D3 satisfy 0.9 ≤ (D2 + D3) / D1 ≤ 1.5.

A lithium primary battery inches a positive electrode, a negative electrode, and a nonaqueous electrolyte solution. The positive electrode contains manganese dioxide and the negative electrode contains a lithium alloy. The lithium alloy contains magnesium. The percentage content of the magnesium in the lithium alloy is 10% by mass or less.

The embodiment of the invention discloses an annealing method of a current collector, the current collector, a positive pole piece and a battery. The annealing method of the current collector comprises the following steps: carrying out annealing treatment on the current collector; wherein the annealing treatment comprises a heating stage, a heat preservation stage and a cooling stage, the temperature of the heat preservation stage is 150-350 DEG C, the heat preservation time is 1-3 hours, the material of the current collector is metallic aluminum, and the surface density of the annealed current collector is 200-260 g / m < 2 >. According to the invention, by controlling the surface density of the current collector made of metal aluminum and carrying out annealing treatment at the corresponding annealing temperature, grains of the current collector can be recrystallized, and meanwhile, the size of the formed grains is controlled, so that the mechanical property of the aluminum current collector is improved, the stress released when the aluminum current collector is impacted by a heavy object is reduced, and the service life of the current collector is prolonged. And the impact resistance of the battery using the current collector is further improved.

The invention discloses a high-power CR button cell and a preparation method thereof, the cell comprises a positive electrode cover, a negative electrode cover, a positive plate, a negative plate, a diaphragm and an electrolyte, two opposite ends of the negative electrode cover are provided with packaging ends, the extension height of the packaging ends is greater than or equal to the height of the negative plate, and the extension height of the packaging ends does not exceed the height of the position of the diaphragm; two opposite ends of the positive electrode cover extend below the packaging end of the negative electrode cover; and a U-shaped ring is arranged at the contact part of the positive plate and the positive cover and is made of one of 430 stainless steel, 304 stainless steel and 316 stainless steel. According to the structure of the battery, when the positive electrode cover is assembled and produced, force generated by extrusion of a sealing opening directly acts on the three sides, so that the three sides are seamlessly attached and cannot generate cracks in battery manufacturing and subsequent processing, the quality waste problem caused by poor contact of the battery is avoided, the quality of the battery is improved, and meanwhile, the production efficiency is improved. The effective occupied space of the positive plate is increased, and the capacity is increased.

The application discloses a phthalocyanine cobalt / pyridine nitrogen skeleton substituted phthalocyanine copper / asphalt coke active carbon composite catalytic material and a preparation method and application thereof, and the method comprises the following steps: 1, pyridine-2,3-dicarboxylic acid, urea, ammonium molybdate, copper chloride dihydrate and asphalt coke active carbon are mixed to obtain a mixture A; 2, the mixture A is kept at 100-180 DEG C, and then kept at 200-350 DEG C to obtain a product B; 3, the product B is ground, soaked, washed and dried in sequence to obtain pyridine nitrogen skeleton substituted phthalocyanine copper / asphalt coke active carbon; 4, phthalic anhydride, urea, ammonium molybdate, cobalt chloride hexahydrate and pyridine nitrogen skeleton substituted phthalocyanine copper / asphalt coke active carbon are mixed to obtain a mixture C; 5, the mixture C is kept at 100-180 DEG C, and then kept at 200-350 DEG C to obtain a product D; 6, the product D is ground, soaked, washed and dried in sequence to obtain the phthalocyanine cobalt / pyridine nitrogen skeleton substituted phthalocyanine copper / asphalt coke active carbon composite catalytic material, the purity of the material is high, and the discharge time and voltage of a Li / SOCl2 battery are improved.

The invention discloses a carbon fluoride battery electrolyte and a carbon fluoride primary battery, and belongs to the technical field of lithium metal primary batteries. The electrolyte comprises a fluorine-containing matrix solution and an isoxazole compound additive, wherein an R1 substituent group of an isoxazole compound is selected from a plurality of functional groups such as alkoxy, fluoroalkyl, carbonyl, ether group, carbamate group and the like. The electrolyte has excellent ionic conductivity at low temperature, and can effectively regulate and control the deposition morphology of a LiF passivation layer, reduce the interface impedance and inhibit the growth of lithium dendrites. A primary battery constructed based on the electrolyte shows excellent low-temperature discharge performance and cycling stability, and is suitable for a high-reliability energy storage scene.

A secondary battery and a preparation method therefor. The secondary battery comprises: a negative pole (1) of the battery, electrolyte (2), a diaphragm (3), a positive pole (4) of the battery, and a battery shell used for packaging, wherein the negative pole (1) of the battery comprises a negative current collector, and does not comprise a negative active material; the positive pole (4) of the battery comprises a positive active material layer (41), the positive active material layer (41) comprises a positive active material, and the positive active material comprises a material having a layered crystal structure; and the electrolyte (2) comprises electrolyte salt and an organic solvent. The main active component of the secondary battery is a material having a layered crystal structure, such that the secondary battery is environmentally-friendly and low in cost; furthermore, a negative active material is not needed by a second battery system, such that the self-weight and cost of the battery are remarkably reduced, and the energy density of the battery is improved; and a reaction principle adopted by the secondary battery significantly increases the working voltage of the battery and further improves the energy density of the battery.

The present application belongs to the technical field of lithium primary battery, and particularly relates to a preparation method of lithium primary battery electrolyte, which comprises the following steps: dissolving lithium nitrate in acetone and fully stirring to make the lithium nitrate fully dissolved until the solution is clear and transparent; adjusting the lithium salt concentration in the solution to 1.5-2 mol / L; adding fluoroethylene carbonate and fully stirring until the solution is clear and transparent; in the solution, the volume ratio of fluoroethylene carbonate to acetone is 1:1-1:3; finally, adding propylene carbonate and fully stirring until the solution is clear and transparent; in the solution, the volume ratio of propylene carbonate to acetone is 1:2-1:4. The present application ensures that the electrolyte has high conductivity and can bear high efficient transportation of lithium ions, effectively increasing the discharge specific capacity and specific energy of the battery. In addition, the present application further provides a lithium primary battery electrolyte.

A non-aqueous electrolyte solution characterized by including: a sulfonyl imide compound that is represented by general formula (1), LiN(RSO2)(FSO2) (where R is a fluorine atom, a C1-6 alkyl group, or a C1-6 fluoroalkyl group); and at least one nitrogen-containing compound selected from the group consisting of amide compounds having a C3-6 branched or linear alkyl group and nitrile compounds having a C3-6 branched or linear alkyl group, wherein the nitrogen-containing compound content relative to the sulfonyl imide compound is 10 ppm by mass to 6000 ppm by mass, inclusive.