摘要:
Provided is a thermoplastic resin having excellent thermal conductivity, in which thermoplastic resin a change in number average molecular mass caused by progress of polymerization occurring when the thermoplastic resin material is melted and a change in thermal conductivity caused by the change in number average molecular mass are low. The thermoplastic resin has (A) a specific structure and (B) ends of molecular chains sealed by a monofunctional low molecular weight compound. The resin itself has excellent thermal conductivity. The change in number average molecular mass becomes small during melting of the thermoplastic resin material, so that the change in thermal conductivity of the resin itself becomes small.
摘要:
An object of the present invention is to provide a secondary battery in which the decomposition of an electrolyte liquid is suppressed and the generation of a gas is reduced, even in the case of using a laminate film as a package. The present exemplary embodiment is a secondary battery of a stacked laminate type comprising an electrode assembly in which a positive electrode and a negative electrode are arranged to face each other, an electrolyte liquid, and a package accommodating the electrode assembly and the electrolyte liquid, wherein the negative electrode is made by binding a negative electrode active substance containing a metal (a) capable of being alloyed with lithium, a metal oxide (b) capable of occluding and releasing lithium ions, and a carbon material (c) capable of occluding and releasing lithium ions, to a negative electrode current collector, with at least one selected from polyimides and polyamideimides; and the electrolyte liquid comprises acrylonitrile or an acrylonitrile compound being an acrylonitrile derivative.
摘要:
The object is to provide a secondary battery with higher performance, and especially to provide a secondary battery having low impedance. An exemplary embodiment of the invention is a secondary battery, comprising an electrode assembly in which a positive electrode and a negative electrode are oppositely disposed, an electrolyte liquid, and a package which encloses the electrode assembly and the electrolyte liquid inside; wherein the negative electrode is formed by binding a negative electrode active substance to a negative electrode collector with a negative electrode binder; and wherein the electrolyte liquid comprises a fluorine-containing cyclic ether compound.
摘要:
Provided is a thermoplastic resin having excellent thermal conductivity, in which thermoplastic resin a change in number average molecular mass caused by progress of polymerization occurring when the thermoplastic resin material is melted and a change in thermal conductivity caused by the change in number average molecular mass are low. The thermoplastic resin has (A) a specific structure and (B) ends of molecular chains sealed by a monofunctional low molecular weight compound. The resin itself has excellent thermal conductivity. The change in number average molecular mass becomes small during melting of the thermoplastic resin material, so that the change in thermal conductivity of the resin itself becomes small.
摘要:
The present invention provides a thermally-conductive organic additive which (i) is an organic polymer, unlike a thermally-conductive inorganic filler such as ceramic, metal and a carbon material, (ii) is capable of imparting thermal conductivity to plastic by being added thereto, (iii) can reduce the weight of a composition even when added to a resin in a large amount, without causing abrasion on molds and deteriorating an electrical insulation property of the composition, and (iv) provides the composition with excellent molding processability. The present thermally-conductive organic additive includes a liquid crystalline thermoplastic resin which has a mainly-chain structure, wherein a main chain of the liquid crystalline thermoplastic resin contains mainly a repeating unit represented by the general formula (1): -M-Sp- (1) wherein M represents a mesogenic group; and Sp represents a spacer, the liquid crystalline thermoplastic resin itself having thermal conductivity of not less than 0.45 W/(m·K).
摘要:
Disclosed is a process for producing spheroidized boron nitride which enable the further improvement in the heat conductivity of a heat dissipative member. Specifically disclosed is a process for producing spheroidized boron nitride, which is characterized by using spheroidized graphite as a raw material and reacting the spheroidized graphite with a boron oxide and nitrogen at a high temperature ranging from 1600 to 2100° C. to produce the spheroidized boron nitride. The boron oxide to be used in the reaction is preferably boron oxide (B2O3), boric acid (H3BO3), or a substance capable of generating a boron oxide at a higher temperature. A gas to be used in the reaction is preferably nitrogen or ammonia.
摘要翻译:公开了一种制造球状氮化硼的方法,其能够进一步提高散热构件的导热性。 具体公开了一种制造球状氮化硼的方法,其特征在于以球状石墨为原料,使球化石墨与氧化硼和氮在1600〜2100℃的高温下反应,生成球化硼 氮化物。 在反应中使用的氧化硼优选为氧化硼(B 2 O 3),硼酸(H 3 BO 3))或能够在较高温度下产生氧化硼的物质。 反应中使用的气体优选为氮气或氨气。
摘要:
There can be provided an energy storage device comprising a positive electrode comprising a nitroxyl compound having a nitroxyl cation partial structure in an oxidized state and having a nitroxyl radical partial structure in a reduced state; a negative electrode comprising a carbon material which lithium ions can be reversibly intercalated into and deintercalated from; and an electrolytic solution comprising a lithium salt and an aprotic organic solvent, wherein the negative electrode is a negative electrode comprising the carbon material which lithium ions are previously intercalated into, apart from lithium ions associated with a capacity A of lithium capable of being intercalated and deintercalated in charge and discharge, thereby allowing the energy storage device to simultaneously achieve high energy density, high output characteristics, low environmental load, and high stability in charge and discharge cycles.
摘要:
The present invention provides a process for producing polymer-modified nanoparticles in which all kinds of nanoparticles can be economically and easily isolated and purified, and obtained in the form of nanoparticles strongly bonded to a polymer. Hence, the nanoparticles can be easily formed into a coating or a film. The process includes mixing nanoparticles having a particle diameter of 100 nm or less which are selected from the group consisting of metals, metal oxides, and compound semiconductors, with a vinyl polymer having terminal SH group in a liquid to modify the surfaces of the nanoparticles with the vinyl polymer and then isolating the nanoparticles modified with the vinyl polymer from the solution.
摘要:
The present invention provides a resin composition containing ultrafine particles exhibiting excellent properties absent from conventional materials. The resin composition is produced by uniformly dispersing, in a resin, metal or semiconductor ultrafine particles with the surfaces modified with a polymer. Specifically, a polymer having a mercapto group at one end is produced by radical polymerization of an unsaturated monomer in the presence of a specified thiocarbonylthio group-containing compound and then treating the resultant polymer with a treating agent, and the surfaces of the ultrafine particles are modified with the polymer having a mercapto group at one end to prepare the polymer-modified ultrafine particles. The polymer-modified ultrafine particles are mixed with a resin to achieve the resin composition containing the ultrafine particles uniformly dispersed in the resin.
摘要:
A writing implement for preventing ink from leaking out from a front end of a tip by absorbing much of a change in pressure inside an ink tank, the implement being a direct liquid type writing implement having an ink tank and an ink flowing portion connecting the ink tank and a writing end, a temporary ink reserve part for temporarily holding ink and an air supplying portion for supplying air to the temporary ink reserve part, the temporary ink reserve part being constituted by a temporary ink reserve groove and an ink guide groove, an ink introducing groove at a vicinity of the ink tank constituting a portion of the ink guide groove, a distance from the writing end to an end portion of the temporary ink reserve groove on its ink tank side being larger than a distance from the writing end to the ink introducing groove.