84 results about "Lithium perchlorate trihydrate" patented technology

A secondary battery which can achieve battery performance satisfactorily in a low temperature environment in cold climates or the like is provided. Further, a secondary battery having high capacity even in a low temperature environment in cold climates or the like is provided. A secondary battery includes a positive electrode, a negative electrode, and an electrolyte solution which contains a nonaqueous solvent and an electrolyte. The negative electrode includes a negative electrode active material layer. The negative electrode active material layer contains graphene, a binder, and a negative electrode active material containing a particulate alloy-based material. The nonaqueous solvent contains propylene carbonate and the electrolyte contains lithium perchlorate.

The invention relates to a one-step initiating polymerization method for preparing nano silica / polymethyl methacrylate gel polymer electrolyte, which is characterized in that: methyl methacrylate used as monomer and the nano silica used as modified particles are mixed directly with prepared lithium perchlorate / propylene carbonate (1mol / l of electrolyte solution used as solvent). The mixed solution is polymerized in water bath heating to 80 DEG C for 2.5 hours, and then reacted gel solution can form the gel electrolyte film after being poured onto a glass board and extending to become film with being dried for 8 hours in the temperature of 60 DEG C. The benefit effects of he invention are that the process of the method is simple and available; the gel solution can be prepared directly with the electrolyte solution being used as the solvent which can take away a large amount of polymerization heat generated by free radical polymerization; the prepared gel polymer electrolyte has satisfied ionic conductivity, and good space size stability and chemical and electro chemical stability.

The invention discloses an inorganic / organic nanometer composite solid electrolyte and a preparation method thereof, belonging to the inorganic / organic nanometer composite material and the preparation process field. The solid electrolyte is composed by polyethylene oxides PEO, lithium perchlorates LiClO4 and hydrotalcite nanometer sheets LDHNS, has a chemical formula of PEO / LiClO4 / LDHNS, the mass parts of each component are 54-91%, 8-16% and 1-30% respectively. The preparation method of the composite solid electrolyte comprises: mixing PEO, LiClO4 and LDHNS in water equably and sufficiently, and then vaporizing the solvent to obtain the composite solid electrolyte of the invention. The inorganic / organic nanometer composite solid electrolyte according to the invention has high conductivity, high lithium ion transference number and heat stability, the electrolyte can be used as the electrolyte of a solid lithium ion battery.

The invention discloses a method for preparing bi-(sulfonyl fluoride) imine and (fluorinated alkyl sulfonyl fluorine sulfonyl) imine alkali metal salt. The method comprises the following steps of: reacting sulfamide and thionyl chloride and chlorosulfonic acid to prepare bi-(sulfonyl chlorine) imine and (fluorinated alkyl sulfonyl chlorine sulfonyl) imine, reacting with antimony trifluoride and potassium carbonate (rubidium or caesium) to obtain corresponding high-purity bi-(sulfonyl fluoride) imine potassium (rubidium or caesium) salt or (fluorinated alkyl sulfonyl fluorine sulfonyl) imine potassium (rubidium or caesium) salt, performing double decomposition exchange reaction using the potassium (rubidium or caesium) salt with the lithium perchlorate (or sodium) or lithium tetrafluoroborate (or sodium) in the aprotic polar solvent to obtain corresponding lithium (or sodium) salt with high purity. The method in the invention has the characteristics of simple operating steps, easy separation and extraction of output, high purity and yield, no environmental pollution, and the like, and is suitable for mass industrial production.

The present disclosure relates to relates to heat-resistant gel electrolyte materials and their uses, for example, in electrochromic devices such as electrochromic windows. In certain embodiments, the disclosure provides an electrolyte material including a polymer of ethyleneimine, optionally at least partially crosslinked (e.g., with an epoxide crosslinker such as the diglycidyl ether of bisphenol A); a lithium salt (e.g., lithium perchlorate); and a high-boiling solvent (e.g., DMSO). The electrolyte materials can be used in electrochromic devices, such as electrochromic windows, e.g., for use as automobile sunroofs.

A chemical carbon dioxide gas generator comprising: - a charge housing; - a carbon dioxide gas penetrable charge, contained in the said housing, the charge comprising a) 40-60 wt. % of a substance which upon decomposition generates carbon dioxide, which substance is selected from the group of magnesium carbonate, other carbonates, magnesium oxalate and other oxalates, b) 20-50 wt. % of an oxidiser selected from the group of sodium chlorate, potassium chlorate, lithium chlorate, other metal chlorates, sodium perchlorate, potassium perchlorate, lithium perchlorate, and other metal perchlorates, c) 1-20 wt. % of carbon or another fuel, d) 1-10 wt. % binder, said components a), b), c) and d) together forming 90-100 wt. % of the total weight of the charge; - an ignition device for igniting the charge; - a carbon dioxide gas treatment unit for reducing the content of one or more side-products - which may have been formed by the charge - in the generated carbon dioxide, and / or for cooling carbon dioxide gas generated by the charge; and - an outlet for carbon dioxide gas generated by the charge.

The invention relates to a method for preparing zirconium-containing polysilane, which is synthesized by the steps of adopting the electrochemical synthesis method, taking magnesium blocks as negative and positive poles, and polymerizing methyl trichlorosilane, allyl chloride, cyclopentadiene and zirconium chloride in tetrahydrofuran solution and electrolyte supported by lithium perchlorate to obtain the polysilane containing double bonds and zirconium. Results show that the polysilane prepared by the method in the invention has high quality retention rate and ceramic yield. The invention has simple and safe operation method; and the zirconium-containing polysilane can improve the ceramic yield of precursors favorably, successfully introduce the antioxidant metal zirconium, and is a ceramic precursor with good performance.

The invention discloses a method for preparing a composite solid electrolyte based on a polyphosphazenes micron-sphere, belonging to the technical field of lithium ion batteries. The method comprises the following steps of: preparing acetonitrile solution of the polyphosphazenes micron-sphere; and adding polyoxyethylene and lithium perchlorate and pouring the mixture to a polytetrafluoroethylene template to prepare the composite solid electrolyte. The polyphosphazenes micron-sphere prepared by the invention has uniform arrangement of the diameters, favorable dispersion degrees as well as smooth and uniform surfaces of the film, which proves that organic / inorganic hybrid polyphosphazenes micron-sphere and a PEO polymer electrolyte matrix have favorable compatibility and indicates that the composite polymer electrolyte has high room-temperature conductivity, a high electrochemical stable window and high lithium ion transference number. The composite solid electrolyte can be used as a lithium ion battery solid electrolyte material.

The present invention provides an electrolyte for electrochromic devices, the substance comprising γ-butyrolactone (gamma-butyrolactone or GBL). The electrolyte may include polymethylmethacrylate. The electrolyte may further include a salt, such as a salt that includes lithium perchlorate or trifluorosulfonimide. In accordance with further aspects to the invention, the electrolyte may include propylene carbonate.

A low-solids gas generating composition, which is a mixture of a fuel selected for the group consisting of cellulose, cellulose acetate, hexamine, and mixtures thereof, and an oxidizer selected from the group consisting of ceric ammonium nitrate, lithium nitrate, lithium perchlorate, sodium perchlorate, phase stabilized ammonium nitrate, a combination of ammonium nitrate with potassium nitrate, potassium perchlorate, or mixtures thereof, such that the combination is a solid solution, a mixture of ammonium perchlorate and at least one alkali metal salt, and mixtures thereof. The combination of ammonium nitrate with other salts in solid solution is intended to phase stabilize the ammonium nitrate. The oxidizer-fuel mixture is within about 4 percent of stoichiometric balance. Useful alkali metal salts include lithium carbonate, lithium nitrate, sodium nitrate, potassium nitrate, and mixtures thereof. The preferred oxidizers for the gas generating composition of the invention are ceric ammonium nitrate, lithium nitrate, lithium perchlorate, sodium perchlorate, a mixture of ammonium perchlorate and at least one alkali metal salt, and mixtures thereof. In addition, the gas generating composition may include an energizing agent, such as RDX or HMX. The gas generating composition of the invention may further comprise sub-micron fumed silica to reduce moisture contamination and serve as a processing and powder flow aid and / or a binder, and may be in the form of pressed pellets, grains, or granules.