Abstract:
A cathode material structure and a method for preparing the same are described. The cathode material structure includes a material body and a composite film coated thereon. The material body has a particle size of 0.1-50 μm. The composite film has a porous structure and electrical conductivity.
Abstract:
An exchange membrane containing modified maleimide oligomers comprising sulfonated poly(aryl ether ketone) (S-PAEK) and modified maleimide oligomers. The exchange membrane uses the modified maleimide oligomers having a hyper-branched architecture as matrix, and introduces them into S-PAEK to constitute semi-interpenetration network (semi-IPN), so as to intensify water holding capacity, chemical resistance, the electrochemical stability and thermal resistance of the ionic/proton exchange membrane. The exchange membrane can be used to fabricate the membrane electrode assemblies, fuel cells, and be applied them to the fields of seawater desalination, heavy water and sewage treatment, and biomass-energy resources.
Abstract:
Disclosed is a gel electrolyte for a photosensitive dye and method for manufacturing the same. First, bismaleimide and barbituric acid are dissolved in Brönsted base solution to form a gelling additive. Subsequently, the gelling additive is added into an ionic liquid electrolyte. The liquid electrolyte is then gelled at room temperature to form a gel electrolyte for the photosensitive dye utilized in dye sensitized solar cells. In addition, barbituric acid is further added into the gelling additive to enhance the gelling rate of the ionic liquid electrolyte.
Abstract:
Disclosed is an electrolytic solution including an organic solvent, a lithium salt, and an additive. The additive includes maleimide compound and vinylene carbonate. The maleimide compound can be maleimide, bismaleimide, polymaleimide, polybismaleimide, maleimide-bismaleimide copolymer, or combinations thereof. The lithium battery employing the described electrolytic solution has a higher capacity of confirmation, higher cycle efficiency, and longer operational lifespan.
Abstract:
A flame retarding polymer electrolyte composition containing maleimides includes a modified maleimide; a lithium salt; and at least one ionic solution in a ratio of at least 2 wt % relative to the total weight of the composition. By using the hyperbranched dendrimer-like structure of the modified maleimide as grafted skeleton for polymer electrolytes, the electrolyte composition can encapsulate an electrolytic solution continuously, thus preventing the exudation of the electrolytic solution and increasing the stability of lithium ionic conduction. Since the ionic solution is nonflammable, the safety of batteries are further enhanced when the polymer electrolyte composition is used as polymer electrolyte for a lithium secondary battery.
Abstract:
The invention provides a halogen-free and thermal resistant composition, including a mixture of bismaleimide and maleimide with molar ratio of 99:1-50:50; a barbituric acid, wherein the molar ratio of the mixture and the barbituric acid is 93:7-80:20; and an epoxy resin, wherein (the mixture with the barbituric acid) and the epoxy resin have a weight ratio of 5:95 to 50:50. The mixture undergoes reaction at 110-130° C. for about 2˜7 hours to form a maleimide modified epoxy resin. The procedure of forming the composition is solvent-free, thereby providing improved integrity for electronic packaging, lower curing temperature, and a simplified process.
Abstract:
A security system. The security system for a protected object comprises a first wireless module, a central controller, and a remote authorization server. The first wireless module and the central controller are disposed in the protected object. The first wireless module transmits an authorization request with an authorization ID (identification) of the protected object, and receives an authorization response. The central controller is coupled to the first wireless module, and allows the protected object to operate in accordance with the authorization response. The remote authorization server, responsive to the authorization request, generates the authorization response from an authorization record thereof in accordance with the authorization ID, and transmits the authorization response.
Abstract:
A heat resistant adhesive composition comprising an admixture of a modified bismaleimide (BMI) resin, a modified polyamide-imide and a solvent. The bismaleimide is modified by barbituric acid and/or the derivatives thereof and the polyamide-imide is modified by an epoxy resin. The overall solid content of the heat resistant adhesive composition is in the range of about 15 to 50 percent by weight, wherein solid contents per overall solid content of the modified bismaleimide resin and the modified polyamide-imide are 60 to 90 percent and 10 to 40 percent, respectively.
Abstract:
Provided is a polyamic acid resin solution containing interpenetrating polymer. The solution includes a polyamic acid resin dissolved in a solvent. The polyamic acid resin includes an interpenetrating polymer formed of polyamic acid twining around hyper-branched polybismaleimide. The hyper-branched polybismaleimide includes a bismaleimide polymer, a bismaleimide oligomer, a barbituric acid-bismaleimide copolymer or combinations thereof.
Abstract:
Disclosed is an electrode assembly of a lithium secondary battery, including an anode plate, a cathode plate, a separator for separating the anode plate and the cathode plate and conducting lithium ions of an electrolyte, and a composite film disposed between the anode plate and the separator and/or between the cathode plate and the separator. The composite film includes 5 to 95 parts by weight of an inorganic clay and 95 to 5 parts by weight of an organic polymer binder.