- LITHIUM-ION BATTERY AND APPARATUS
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This application provides a lithium-ion battery and an apparatus. The lithium-ion battery includes an electrode assembly and an electrolyte. The electrode assembly includes a positive electrode plate, a negative electrode plate, and a separator. A positive active material of the positive electrode plate includes Lix1Coy1M1-y1O2-z1Qz1, where 0.5≤x1≤1.2, 0.8≤y1≤1.0, 0≤z1≤0.1, M is selected from one or more of Al, Ti, Zr, Y, and Mg, and Q is selected from one or more of F, Cl, and S. The electrolyte contains an additive A, an additive B, and an additive C. The additive A is a polynitrile six-membered nitrogen-heterocyclic compound with a relatively low oxidation potential. The additive B is a silyl phosphite compound or a silyl phosphate compound or a mixture thereof. The additive C is a halogen substituted cyclic carbonate compound.
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Paragraph 0158-0159; 0166-0167
(2021/03/13)
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- Lithium-ion battery and apparatus
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This application provides a lithium-ion battery and an apparatus. The lithium-ion battery includes an electrode assembly and an electrolyte. The electrode assembly includes a positive electrode plate, a negative electrode plate, and a separator. A positive active material of the positive electrode plate includes Lix1Coy1M1-y1O2-z1Qz1, where 0.5≤x1≤1.2, 0.8≤y11.0, 0≤z1≤0.1, M is selected from one or more of Al, Ti, Zr, Y, and Mg, and Q is selected from one or more of F, Cl, and S. The electrolyte contains an additive A, an additive B, and an additive C. The additive A is a polynitrile six-membered nitrogen-heterocyclic compound with a relatively low oxidation potential. The additive B is an anhydride compound. The additive C is a halogen substituted cyclic carbonate compound.
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Page/Page column 22
(2021/03/04)
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- LITHIUM-ION BATTERY AND APPARATUS
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This application provides a lithium-ion battery and an apparatus. The lithium-ion battery includes an electrode assembly and an electrolyte. The electrode assembly includes a positive electrode plate, a negative electrode plate, and a separator. A positive active material of the positive electrode plate includes Lix1Coy1M1-y1O2-z1Qz1, where 0.5≤x1≤1.2, 0.8≤y1≤1.0, 0≤z1≤0.1, M is selected from one or more of Al, Ti, Zr, Y, and Mg, and Q is selected from one or more of F, Cl, and S. The electrolyte contains an additive A that is a polynitrile six-membered nitrogen-heterocyclic compound with a relatively low oxidation potential. The lithium-ion battery has superb cycle performance and storage performance, especially under high-temperature and high-voltage conditions.
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Paragraph 0133; 0134
(2021/05/07)
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- LITHIUM-ION BATTERY AND APPARATUS
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The present application provides a lithium-ion battery and an apparatus, and the lithium-ion battery includes an electrode assembly and an electrolytic solution, the electrode assembly includes a positive electrode sheet, a negative electrode sheet and a separation film. A positive active material of the positive electrode sheet includes Lix1Coy1M1-yO2-z1Qz1, 0.5≤x1≤1.2, 0.8≤y1≤1.0, 0≤z1≤0.1, M is selected from one or more of Al, Ti, Zr, Y, and Mg, and Q is selected from one or more of F, Cl, and S. The electrolytic solution contains vinylene carbonate, fluoroethylene carbonate, 1,3-propane sultone, and an additive A. The additive A is a polynitrile six-membered nitrogen-heterocyclic compound with a relatively low oxidation potential. The lithium-ion battery has superb cycle performance and storage performance, especially under high-temperature and high-voltage conditions.
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Paragraph 0130-0131
(2021/05/07)
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- LITHIUM-ION BATTERY AND APPARATUS
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The present application provides a lithium-ion battery and an apparatus, the lithium-ion battery includes an electrode assembly and an electrolyte. The electrode assembly includes a positive electrode sheet, a negative electrode sheet and a separation film. The positive active material in the positive electrode sheet includes Lix1Coy1M1-y1 O2-z1Qz1, 0.5≤x1≤1.2, 0.8≤y1≤1.0, 0≤z1≤0.1, and M is selected from one of Al, Ti, Zr, Y, and Mg, and Q is selected from one or more of F, Cl, and S. The electrolyte contains an additive A and an additive B, the additive A is a polynitrile six-membered nitrogen-heterocyclic compound with a relatively low oxidation potential, and the additive B is an aliphatic dinitrile or polynitrile compound with a relatively high oxidation potential. The lithium-ion battery of the present application has superb cycle performance and storage performance, especially under high-temperature and high-voltage conditions.
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Paragraph 0188; 0189
(2021/05/14)
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- LITHIUM-ION BATTERY AND APPARATUS
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The present application provides a lithium-ion battery and an apparatus, the lithium-ion battery includes an electrode assembly and an electrolyte, the electrode assembly includes a positive electrode sheet, a negative electrode sheet and a separator. A positive active material of the positive electrode sheet includes both Lix1Coy1M11-y1O2-aQ1a and LilNim1Con1M2pM3qO2-bQ2b, a mass ratio of Lix1Coy1M11-y1O2-aQ1a and LilNim1Con1M2pM3qO2-bQ2b is 1:1-9:1. The electrolyte contains an additive A, the additive A is a six-membered nitrogen heterocyclic compound with multiple nitrile groups and with low oxidation potential. The lithium-ion battery according to the present application has excellent cycle performance and storage performance, especially under high temperature and high voltage conditions.
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Paragraph 0132-0133
(2021/05/14)
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- ELECTROLYTE AND ELECTROCHEMICAL DEVICE
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The present disclosure relates to the field of energy storage materials, and particularly, to an electrolyte and an electrochemical device. The electrolyte includes an additive A and an additive B, the additive A is selected from a group consisting of multi-cyano six-membered N-heterocyclic compounds represented by Formula I-1, Formula I-2 and Formula I-3, and combinations thereof, and the additive B is at least one unsaturated bond-containing cyclic carbonate compound. The electrochemical device includes the above electrolyte. The electrolyte of the present disclosure can effectively passivate surface activity of the positive electrode material, inhibit oxidation of the electrolyte, and effectively reduce gas production of the battery, while an anode SEI film can be formed to avoid a contact between the anode and the electrode and thus to effectively reduce side reactions.
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Paragraph 0136; 0137
(2021/09/10)
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- ELECTROLYTE AND ELECTROCHEMICAL DEVICE
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An electrolyte and an electrochemical device, which relates to the field of energy storage materials. The electrolyte includes an additive A, an additive B and an additive C, the additive A selected from a group consisting of multi-cyano six-membered N-heterocyclic compounds represented by Formula I-1, Formula I-2 or Formula I-3, and combinations thereof, the additive B is at least one sulfonate compound, and the additive C is at least one halogenated cyclic carbonate compound. The electrochemical device includes the above electrolyte. The electrolyte of the present disclosure can effectively passivate the surface activity of the positive electrode material, inhibit the oxidation of the electrolyte, and effectively reduce gas production of a battery, meanwhile the electrolyte can be also adsorbed catalytically active of the graphite surface to form a more stable SEI film, thereby effectively reducing side reactions
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Paragraph 0129; 0130
(2020/05/06)
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- Selective hydrogenation of N-heterocyclic compounds using Ru nanocatalysts in ionic liquids
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N-Heterocyclic compounds have been tested in the selective hydrogenation catalysed by small 1-3 nm sized Ru nanoparticles (NPs) embedded in various imidazolium based ionic liquids (ILs). Particularly a diol-functionalised IL shows the best performance in the hydrogenation of quinoline to 1,2,3,4-tetrahydroquinoline (1THQ) with up to 99% selectivity.
- Konnerth, Hannelore,Prechtl, Martin H. G.
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supporting information
p. 2762 - 2767
(2017/07/24)
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- An ATR-FTIR study on the effect of molecular structural variations on the CO2 absorption characteristics of heterocyclic amines, part II
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This paper reports on an ATR-FTIR spectroscopic investigation of the CO2 absorption characteristics of a series of heterocyclic diamines: hexahydropyrimidine (HHPY), 2-methyl and 2,2-dimethylhexahydropyrimidine (MHHPY and DMHHPY), hexahydropyridazine (HHPZ), piperazine (PZ) and 2,5- and 2,6-dimethylpiperazine (2,6-DMPZ and 2,5-DMPZ). By using in situ ATR-FTIR the structure-activity relationship of the reaction between heterocyclic diamines and CO2 is probed. PZ forms a hydrolysis-resistant carbamate derivative, while HHPY forms a more labile carbamate species with increased susceptibility to hydrolysis, particularly at higher CO2 loadings (>0.5 mol CO2/mol amine). HHPY exhibits similar reactivity toward CO2 to PZ, but with improved aqueous solubility. The α-methyl-substituted MHHPY favours HCO3- formation, but MHHPY exhibits comparable CO2 absorption capacity to conventional amines MEA and DEA. MHHPY show improved reactivity compared to the conventional α-methyl- substituted primary amine 2-amino-2-methyl-1-propanol. DMHHPY is representative of blended amine systems, and its reactivity highlights the advantages of such systems. HHPZ is relatively unreactive towards CO 2. The CO2 absorption capacity CA (mol CO 2/mol amine) and initial rates of absorption RIA (mol CO2/mol amine min-1) for each reactive diamine are determined: PZ: CA=0.92, RIA=0.045; 2,6-DMPZ: C A=0.86, RIA=0.025; 2,5-DMPZ: CA=0.88, R IA=0.018; HHPY: CA=0.85, RIA=0.032; MHHPY: CA=0.86, RIA=0.018; DMHHPY: CA=1.1, R IA=0.032; and HHPZ: no reaction. Calculations at the B3LYP/6-31+G* and MP2/6-31+G* calculations show that the substitution patterns of the heterocyclic diamines affect carbamate stability, which influences hydrolysis rates. Copyright
- Robinson, Kelly,McCluskey, Adam,Attalla, Moetaz I.
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experimental part
p. 2331 - 2341
(2012/10/07)
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- Probing molecular shape. 1. Conformational studies of 5- hydroxyhexahydropyrimidine and related compounds
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(Chemical Equation Presented) Understanding the factors that determine molecular shape enables scientists to begin to understand and tailor molecular properties and reactivity. Many biomolecules and bioactive compounds contain aliphatic heterocyclic rings whose conformations play a major role in their biological activity. The interplay of a number of factors, both steric and electronic, is examined for 5-hydroxyhexahydropyrimidine (1) and related compounds with use of spectroscopy and molecular modeling.
- Locke, Julie M.,Crumbie, Robyn L.,Griffith, Renate,Bailey, Trevor D.,Boyd, Susan,Roberts, John D.
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p. 4156 - 4162
(2008/02/05)
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- DEOXYHYPUSINE-SYNTHASE INHIBITORS, PHARMACEUTICALS COMPRISING SAID INHIBITORS AND USES THEREOF
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The present invention relates to compounds that are capable of inhibiting the enzyme deoxyhypusine-synthase as well as pharmaceutical compositions that comprise one or more of these compounds, methods for preventing or treating diseases that are affected by inhibiting the activity of the enzyme deoxyhypusine-synthase and/or hypusination of the eukaryotic initiation factor 5A (eIF-5A) and the use of these compounds for the preparation of such a medicament. More particularly, the present invention relates to classes of 1,3-Diazacyclohexanes and 1,3-Diazacyclo-1-hexenes that inhibit the activity of the enzyme deoxyhypusine-synthase and/or hypusination of the eukaryotic initiation factor 5A.
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- Equilibrium constants of formation and basicity of hexahydropyrimidines in water
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The equilibrium constants of formation and basicity of hexahydropyrimidines, reversibly formed by the reaction of 1,3-propanediamine with formaldehyde or acetaldehyde in aqueous solutions, are estimated by pH-metry using the formation functions. The basicity constants of a series of alkyl-substituted diaziridines and 1,5-diazabicyclo[3.1.0]hexanes are determined.
- Terpigorev,Kuznetsova,Uvarova,Bazanov
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p. 2103 - 2107
(2007/10/03)
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- Kinetics of 1,5-diazabicyclo[3.1.0]hexane synthesis
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The kinetics of the main reactions in synthesis of 1,5-diazabicyclo[3.1.0]hexane from 1,3-propanediamine, formaldehyde, and sodium hypochlorite was studied. The apparent rate constants of reactions were determined as influenced by the concentrations and ratios of reagents, order of their mixing, and temperature and pH of the reaction medium. The general scheme of synthesis and partial equations of the rate constants were evaluated.
- Terpigorev,Kuz'mina
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p. 2108 - 2117
(2007/10/03)
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- Synthesis of 2-alkylhexahydropyrimidines from nitriles
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Process for producing 2-alkylhexahydropyrimidines from 1,3-diamines and alkyl nitriles using a hydrogenation catalyst.
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- Acyl Derivatives of Cyclic Secondary Amines. Part 1. Dipole Stabilization of Anions: the Cumulative effect of Two Stabilizing Groups
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Lithiation studies with diacylimidazolidines, diacylhexahydropyrimidines, and triacylhexahydro-1,3,5-triazines indicate that no substantial increase in carbanion stability occurs as a result of the introduction of the second stabilizing group.Relative energies are calculated for three conformers of lithiated diformylimidazolidine, six conformers of lithiated diformylhexahydropyrimidine, and eight conformers of lithiated triformylhexahydro-sym-triazine.For the six-membered rings, conformers with equatorial lithium are always more stable those those with axial lithium.Although equatorial syn-syn conformers (with double O-Li co-ordination) are more stable than equatorial syn-anti, the difference is significantly less than that found between the corresponding syn-anti and (least stable) anti-anti conformers.
- Katritzky, Alan R.,Murugan, Ramiah,Luce, Hudson,Zerner, Michael,Ford, George P.
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p. 1695 - 1700
(2007/10/02)
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- ASYMMETRIC NITROGEN-41 STEREOCHEMISTRY OF BICYCLIC 1,2-CIS-DIAZIRIDINES
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The twisting of 5- and 6-membered rings in bicyclic cis-diaziridines-1,5-diazabicyclo(3.1.0)hexanes 12-17 and 1,6-diazabicyclo(4.1.0)heptane 18-is a rapid process in the time scale of 1H- and 13C-NMR even at -80 deg C.According to the 1H- and 13C-NMR spectra, 1,5-diazabicyclo(3.1.0)hexanes 12, 13, 15a,b and 16a, b do, exist mostly in the boat form; only the introduction of endo substituents into position 3 or 6 leads to the population of the chair, as is the case with 14 and 17. 2,4-Dialkyl substituted 1,5-diaza- and 1,3,5-triazabicyclo(3.1.0)hexanes are formed via a transition cyclization state similar in its geometry to the initial chair-shaped N-chlorodi(tri)azanes.
- Shustov, G.V.,Denisenko, S.N.,Chervin, I.I.,Asfandiarov, N.L.,Kostyanovsky, R.G.
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p. 5719 - 5732
(2007/10/02)
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- Acylated hindered hexahydropyrimidines and their use as light stabilizing agents
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An acylated, hindered hexahydropyrimidine of the formula STR1 wherein R1, R2, R3 and R4 may be the same or different independently of each other and are alkyl having 1 to 6 carbon atoms, when unsubstituted, or alkyl or aryl substituted; R5 and R6 may be the same or different and are hydrogen, or alkyl; R7 is selected from the group consisting of: alkyl having 1 to 20 carbon atoms, substituted alkyl where the alkyl without substitution has 1 to 20 carbon atoms and where substituents may be up to five lower alkyl groups, arylalkyl, cycloalkyl having 3 to 12 carbon atoms, aryl aryl substituted with 1 to 3 substituents seleted from the group consisting of: lower alkyl, lower alkoxy, and hydroxyl; STR2 wherein R9 is unsubstituted or substituted with alkyl, R10 is hydroxyl, lower alkoxy, phenoxy and the group STR3 and R8 is hydrogen, alkyl, substituted alkyl, arylalkyl, hydroxyl, oxyl and STR4 wherein R11 is unsubstituted or substituted alkyl.
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- CATALYTIC SYNTHESIS OF DIAZINES FROM 1,3-DIAMINOPROPANE AND 3-AMINO-1-PROPANOL
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The transformation of 1,3-diaminopropane and 3-amino-1-propanol under pulse conditions over tungsten trioxide in an inert atmosphere at 300-500 deg C were investigated.The transformation of 1,3-diaminopropane leads to the formation of saturated pyrimidine
- Oshis, Ya. F.,Anderson, A. A.,Shimanskaya, M. V.
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p. 740 - 745
(2007/10/02)
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