Abstract

A polyimide used as an electrode material capable of remarkably improving the cycle characteristics of a lithium-ion secondary battery is provided. The polyimide is a polyimide used as an electrode material for lithium-ion secondary batteries, in which a diamine component contains an aromatic diamine compound represented by the following Formula (1). A polyimide used as an electrode material capable of remarkably improving the cycle characteristics of a lithium-ion secondary battery is provided. The polyimide is a polyimide used as an electrode material for lithium-ion secondary batteries, in which a diamine component contains an aromatic diamine compound represented by the following Formula (1).

IPC Classes  ?

• H01M 4/62 - Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
• C08G 73/10 - PolyimidesPolyester-imidesPolyamide-imidesPolyamide acids or similar polyimide precursors
• H01M 4/02 - Electrodes composed of, or comprising, active material
• H01M 4/13 - Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulatorsProcesses of manufacture thereof
• H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodesLithium-ion batteries

Abstract

[Problem] To provide a polyimide which is used as an electrode material that can be cured at relatively low temperatures. [Solution] Provided is a polyimide which is used as an electrode material for a lithium ion secondary battery, and which contains, as diamine components, at least aromatic diamine compounds that are represented by formulae (1) and (2).

IPC Classes  ?

• H01M 4/60 - Selection of substances as active materials, active masses, active liquids of organic compounds
• H01M 4/13 - Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulatorsProcesses of manufacture thereof
• H01M 4/36 - Selection of substances as active materials, active masses, active liquids
• H01M 4/134 - Electrodes based on metals, Si or alloys
• H01M 4/136 - Electrodes based on inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy
• H01M 4/137 - Electrodes based on electro-active polymers

Abstract

Provided is a polyimide that is used as an electrode material and makes it possible to markedly improve the cycle characteristics of a lithium ion secondary battery. Specifically provided is a polyimide used as an electrode material for a lithium ion secondary battery, wherein the diamine component includes an aromatic diamine compound represented by formula (1).

IPC Classes  ?

• H01M 4/62 - Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
• C08G 73/10 - PolyimidesPolyester-imidesPolyamide-imidesPolyamide acids or similar polyimide precursors
• H01M 4/13 - Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulatorsProcesses of manufacture thereof
• H01M 4/134 - Electrodes based on metals, Si or alloys
• H01M 4/136 - Electrodes based on inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy

Abstract

Provided a polyimide compound having high heat resistance and transparency. The polyimide compound according to the present invention is characterized in that it is a reaction product of a diamine compound represented by the following general formula (1): and an alicyclic tetracarboxylic acid dianhydride represented by the following general formula (2).

IPC Classes  ?

• C08L 79/08 - PolyimidesPolyester-imidesPolyamide-imidesPolyamide acids or similar polyimide precursors
• C08G 73/10 - PolyimidesPolyester-imidesPolyamide-imidesPolyamide acids or similar polyimide precursors

Abstract

[Problem]To provide a solvent-soluble polyimide compound with which the initial charge/discharge efficiency and the cycle characteristics of a lithium-ion secondary battery can be significantly improved. [Solution] A solvent-soluble polyimide compound according to the present invention is a solvent-soluble polyimide used as an electrode material for a lithium-ion secondary battery, and is characterized in that the solvent-soluble polyimide compound is a reactant of a carboxyl group-containing diamine and an acid anhydride, has an elastic modulus of at least 3.4 GPa.

IPC Classes  ?

• H01M 4/62 - Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
• C08G 73/10 - PolyimidesPolyester-imidesPolyamide-imidesPolyamide acids or similar polyimide precursors
• C08L 79/08 - PolyimidesPolyester-imidesPolyamide-imidesPolyamide acids or similar polyimide precursors
• H01M 4/13 - Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulatorsProcesses of manufacture thereof
• H01M 10/052 - Li-accumulators

Abstract

[Problem] To provide: a colored resin composition which includes a polyimide compound that is highly soluble in an organic solvent and from which a cured product having excellent adhesion to a polyimide film substrate can be formed; and a cured product formed using said colored resin composition. [Solution] A colored resin composition according to the present invention comprises (A) an organic solvent-soluble polyimide compound, (B) a colorant, and (C) an organic solvent, the colored resin composition being characterized in that the (A) organic solvent-soluble polyimide compound is obtained by imidizing a polyimide precursor composed of reaction components including: (A-1) a diamine compound represented by general formula (1); (A-2) at least one among a diamine compound having at least one among a carboxyl group and a hydroxyl group, and a diamine compound having a siloxane bond; and (A-3) an acid anhydride.

IPC Classes  ?

• C08G 73/10 - PolyimidesPolyester-imidesPolyamide-imidesPolyamide acids or similar polyimide precursors

Abstract

[Problem] To provide a colored resin composition which contains a polyimide compound that is highly soluble in an organic solvent and from which a cured product that exhibits excellent adhesion to a polyimide film base material can be formed. [Solution] A colored resin composition comprising: (A) an organic solvent-soluble polyimide compound; (B) a coloring agent; and (C) an organic solvent, the (A) organic solvent-soluble polyimide compound being obtained by imidizing a polyimide precursor comprising reaction components including: (A-1) a diamine compound represented by general formula (1); (A-2) at least one diamine compound selected from the group consisting of (A-2-I) diamine compounds having at least one of a carboxyl group and a hydroxyl group, and (A-2-II) diamine compounds having a siloxane bond; and (A-3) an acid anhydride.

IPC Classes  ?

• C08L 79/08 - PolyimidesPolyester-imidesPolyamide-imidesPolyamide acids or similar polyimide precursors

Abstract

[Problems to be Solved] The present invention provides a novel diamine compound which allows for the synthesis of a polyimide compound having a high solubility in an organic solvent and a high melt moldability. [Solution] The diamine compound according to the present invention is characterized by being represented by the following general formula (1): 8 is a substituted or unsubstituted aromatic group).

IPC Classes  ?

• C08G 73/10 - PolyimidesPolyester-imidesPolyamide-imidesPolyamide acids or similar polyimide precursors
• C07C 229/60 - Compounds containing amino and carboxyl groups bound to the same carbon skeleton having amino and carboxyl groups bound to carbon atoms of six-membered aromatic rings of the same carbon skeleton with amino and carboxyl groups bound to carbon atoms of the same non-condensed six-membered aromatic ring with amino and carboxyl groups bound in meta- or para- positions
• C07C 201/12 - Preparation of nitro compounds by reactions not involving the formation of nitro groups
• C07C 227/04 - Formation of amino groups in compounds containing carboxyl groups
• C08G 69/26 - Polyamides derived from amino carboxylic acids or from polyamines and polycarboxylic acids derived from polyamines and polycarboxylic acids
• C08G 73/16 - Polyester-imides

Abstract

[Problems to be solved] The present invention provides a novel diamine compound which allows for the synthesis of a polyimide compound having a high solubility in an organic solvent and a high melt moldability. [Solution] The diamine compound according to the present invention is characterized by being represented by the following general formula (1): 8 is a substituted or unsubstituted aromatic group).

IPC Classes  ?

• C08G 73/10 - PolyimidesPolyester-imidesPolyamide-imidesPolyamide acids or similar polyimide precursors
• C07C 229/60 - Compounds containing amino and carboxyl groups bound to the same carbon skeleton having amino and carboxyl groups bound to carbon atoms of six-membered aromatic rings of the same carbon skeleton with amino and carboxyl groups bound to carbon atoms of the same non-condensed six-membered aromatic ring with amino and carboxyl groups bound in meta- or para- positions
• C07C 201/12 - Preparation of nitro compounds by reactions not involving the formation of nitro groups
• C07C 227/04 - Formation of amino groups in compounds containing carboxyl groups
• C08G 69/26 - Polyamides derived from amino carboxylic acids or from polyamines and polycarboxylic acids derived from polyamines and polycarboxylic acids
• C08G 73/16 - Polyester-imides

Abstract

[Problem] To provide a polyimide compound having high heat resistance and transparency. [Solution] The polyimide compound of the present invention is characterized by being the reaction product of a diamine compound represented by general formula (1) and an alicyclic tetracarboxylic dianhydride represented by general formula (2).

IPC Classes  ?

• C08G 73/10 - PolyimidesPolyester-imidesPolyamide-imidesPolyamide acids or similar polyimide precursors
• C07C 229/60 - Compounds containing amino and carboxyl groups bound to the same carbon skeleton having amino and carboxyl groups bound to carbon atoms of six-membered aromatic rings of the same carbon skeleton with amino and carboxyl groups bound to carbon atoms of the same non-condensed six-membered aromatic ring with amino and carboxyl groups bound in meta- or para- positions

Abstract

[Problems to be solved] The present invention provides a novel diamine compound which allows for the synthesis of a polyimide compound having a high solubility in an organic solvent and a high melt moldability. [Solution] The diamine compound according to the present invention is characterized by being represented by the following general formula (1): 8 is a substituted or unsubstituted aromatic group).

IPC Classes  ?

• C08G 69/26 - Polyamides derived from amino carboxylic acids or from polyamines and polycarboxylic acids derived from polyamines and polycarboxylic acids
• C07C 229/60 - Compounds containing amino and carboxyl groups bound to the same carbon skeleton having amino and carboxyl groups bound to carbon atoms of six-membered aromatic rings of the same carbon skeleton with amino and carboxyl groups bound to carbon atoms of the same non-condensed six-membered aromatic ring with amino and carboxyl groups bound in meta- or para- positions
• C07C 201/12 - Preparation of nitro compounds by reactions not involving the formation of nitro groups
• C07C 227/04 - Formation of amino groups in compounds containing carboxyl groups
• C08G 73/10 - PolyimidesPolyester-imidesPolyamide-imidesPolyamide acids or similar polyimide precursors
• C08G 73/16 - Polyester-imides

Abstract

[Problem] To provide a novel diamine compound with which it is possible to synthesize a polyimide compound having high solubility in organic solvents and high melt moldability. [Solution] This diamine compound is characterized by being represented by general formula (1). (In the formula, R1-R8 each independently are selected from the group consisting of hydrogen, fluorine, substituted or unsubstituted alkyl groups, and substituted or unsubstituted aromatic groups, and at least one of R1-R8 is a substituted or unsubstituted aromatic group.)

IPC Classes  ?

• C07C 229/60 - Compounds containing amino and carboxyl groups bound to the same carbon skeleton having amino and carboxyl groups bound to carbon atoms of six-membered aromatic rings of the same carbon skeleton with amino and carboxyl groups bound to carbon atoms of the same non-condensed six-membered aromatic ring with amino and carboxyl groups bound in meta- or para- positions
• C07C 227/04 - Formation of amino groups in compounds containing carboxyl groups
• C07C 227/18 - Preparation of compounds containing amino and carboxyl groups bound to the same carbon skeleton from compounds containing already amino and carboxyl groups or derivatives thereof by reactions involving amino or carboxyl groups, e.g. hydrolysis of esters or amides, by formation of halides, salts or esters
• C08G 73/10 - PolyimidesPolyester-imidesPolyamide-imidesPolyamide acids or similar polyimide precursors
• C07B 61/00 - Other general methods