JP2014019625A5 - Carbon-iron-based crystal composite nanosheet, method for producing the same, and lithium ion secondary battery - Google Patents

Carbon-iron-based crystal composite nanosheet, method for producing the same, and lithium ion secondary battery Download PDF

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JP2014019625A5
JP2014019625A5 JP2012161541A JP2012161541A JP2014019625A5 JP 2014019625 A5 JP2014019625 A5 JP 2014019625A5 JP 2012161541 A JP2012161541 A JP 2012161541A JP 2012161541 A JP2012161541 A JP 2012161541A JP 2014019625 A5 JP2014019625 A5 JP 2014019625A5
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iron
carbon
based crystal
nanosheet
composite nanosheet
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即ち、本発明は、炭素と鉄系結晶体とが複合されてなるナノシートを製造する方法であって、
ポリアミンの水溶液（Ａ）と、鉄カチオンと酸根アニオンからなる鉄イオン化合物の水溶液（Ｂ）を混合し、その混合液からポリアミンと鉄イオンを含む不溶性の複合体（Ｃ）を得る工程、
前記工程で得られた前記複合体（Ｃ）を加熱焼成する工程、
を有することを特徴とする、炭素−鉄系結晶体複合ナノシートの製造方法、当該製造方法で得られる、炭素−鉄系結晶体複合ナノシート、及び当該炭素−鉄系結晶体複合ナノシートを有するリチウムイオン二次電池を提供するものである。 That is, the present invention is a method for producing a nanosheet comprising a composite of carbon and an iron-based crystal,
Obtaining an aqueous solution of a polyamine and (A), an aqueous solution of iron ion compounds consisting of iron cations and acid radical anion (B) are mixed, a complex insoluble containing polyamine and iron ions from the mixture (C),
The step of firing the composite obtained in the step a (C),
And having a carbon - a method of manufacturing an iron-based crystalline complex nanosheets obtained in this the production process, the carbon - lithium with iron-based crystalline complex nanosheet - iron crystal composite nanosheet, and the carbon An ion secondary battery is provided.

Claims (11)

炭素と鉄系結晶体とが複合されてなるナノシートを製造する方法であって、
ポリアミンの水溶液（Ａ）と、鉄カチオンと酸根アニオンからなる鉄イオン化合物の水溶液（Ｂ）を混合し、その混合液からポリアミンと鉄イオンを含む不溶性の複合体（Ｃ）を得る工程、
前記工程で得られた前記複合体（Ｃ）を加熱焼成する工程、
を有することを特徴とする、炭素−鉄系結晶体複合ナノシートの製造方法。 A method for producing a nanosheet comprising a composite of carbon and an iron-based crystal,
Obtaining an aqueous solution of a polyamine and (A), an aqueous solution of iron ion compounds consisting of iron cations and acid radical anion (B) are mixed, a complex insoluble containing polyamine and iron ions from the mixture (C),
The step of firing the composite obtained in the step a (C),
A method for producing a carbon-iron-based crystal composite nanosheet, comprising: 前記ポリアミンが水溶性であり、かつ数平均分子量が１０００〜１００万の範囲のポリアミンである請求項１記載の炭素−鉄系結晶体複合ナノシートの製造方法。 The port Riamin a water-soluble, and a number average molecular weight of carbon according to claim 1, wherein the polyamine ranging from 1,000 to 1,000,000 - the production method of the iron-based crystalline complex nanosheet. 前記鉄イオン化合物が、硫酸鉄である請求項１又は２記載の炭素−鉄系結晶体複合ナノシートの製造方法。 The method for producing a carbon-iron-based crystal composite nanosheet according to claim 1 or 2, wherein the iron ion compound is iron sulfate. 前記水溶液（Ａ）と（Ｂ）との使用割合が、前記ポリアミン中のアミノ基と鉄イオン化合物のモル比として１：１〜５：１の範囲である請求項１〜３の何れか１項記載の炭素−鉄系結晶体複合ナノシートの製造方法。 The ratio of the water solution (A) and (B) is 1 molar ratio of amino groups and iron compound in said polyamine: 1-5: any one of claims 1 to 3 1 by weight A method for producing a carbon-iron-based crystal composite nanosheet according to Item. 前記加熱焼成を、不活性ガス雰囲気下で行うことを特徴とする請求項１〜４の何れか１項記載の炭素−鉄系結晶体複合ナノシートの製造方法。 Method for producing iron-based crystalline complex nanosheet - the pressurized heat sintering, the carbon of any one of claims 1 to 4, characterized in that an inert gas atmosphere. 請求項１〜５の何れか１項記載の製造方法で得られることを特徴とする炭素−鉄系結晶体複合ナノシート。 A carbon-iron-based crystal composite nanosheet obtained by the production method according to any one of claims 1 to 5. 前記複合ナノシートの厚みが５〜１００ｎｍの範囲である請求項６記載の炭素−鉄系結晶体複合ナノシート。 The carbon-iron-based crystal composite nanosheet according to claim 6, wherein the thickness of the composite nanosheet is in the range of 5 to 100 nm. 前記複合ナノシートの２次元方向での大きさが５００ｎｍ〜１０ｍｍの範囲である請求項６又は７記載の炭素−鉄系結晶体複合ナノシート。 The carbon-iron-based crystal composite nanosheet according to claim 6 or 7, wherein a size of the composite nanosheet in a two-dimensional direction is in a range of 500 nm to 10 mm. 前記複合ナノシート中の鉄系結晶体の含有率が１〜３０質量%の範囲である請求項６〜８の何れか１項記載の炭素−鉄系結晶体複合ナノシート。 The carbon-iron-based crystal composite nanosheet according to any one of claims 6 to 8, wherein the content of the iron-based crystal in the composite nanosheet is in the range of 1 to 30% by mass. 前記複合ナノシート中の鉄系結晶体が硫化鉄又は酸化鉄であり、且つ平均粒子径が１〜１０００ｎｍのナノ粒子状である請求項６〜９の何れか１項記載の炭素−鉄系結晶体複合ナノシート。 The carbon-iron-based crystal according to any one of claims 6 to 9, wherein the iron-based crystal in the composite nanosheet is iron sulfide or iron oxide and has an average particle diameter of 1 to 1000 nm. Composite nanosheet. 請求項６〜１０の何れか一項記載の炭素−鉄系結晶体複合ナノシートを有することを特徴とするリチウムイオン二次電池。A lithium ion secondary battery comprising the carbon-iron-based crystal composite nanosheet according to any one of claims 6 to 10.
JP2012161541A 2012-07-20 2012-07-20 Method for producing carbon-iron-based crystal composite nanosheet Expired - Fee Related JP5958139B2 (en)

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