JP2008123714A5 - - Google Patents

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JP2008123714A5
JP2008123714A5 JP2006303038A JP2006303038A JP2008123714A5 JP 2008123714 A5 JP2008123714 A5 JP 2008123714A5 JP 2006303038 A JP2006303038 A JP 2006303038A JP 2006303038 A JP2006303038 A JP 2006303038A JP 2008123714 A5 JP2008123714 A5 JP 2008123714A5
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正極および負極と共に電解液を備え、前記電解液は、溶媒と、電解質塩とを含み、
前記溶媒は、化１で表される環状炭酸エステルと、化２で表される鎖状炭酸エステルとを含む、二次電池。
Figure 2008123714
 （Ｒ１〜Ｒ４は水素基、フッ素基、アルキル基あるいはフッ素化アルキル基であり、それらは互いに同一でもよいし異なってもよいが、それらのうちの少なくとも１つはフッ素基あるいはフッ素化アルキル基である。）
Figure 2008123714
 （Ｒ５およびＲ６は水素基、フッ素基、アルキル基あるいはフッ素化アルキル基であり、それらは互いに同一でもよいし異なってもよいが、それらのうちの少なくとも１つはフッ素基あるいはフッ素化アルキル基である。） Comprising a cathode, an anode, the electrolyte comprises a solvent and an electrolyte salt,
The solvent comprises a cyclic carbonate represented by Chemical Formula 1, and a chain carbonate represented by Chemical Formula 2, the secondary battery.
Figure 2008123714
 (R1 to R4 are a hydrogen group, a fluorine group, an alkyl group or a fluorinated alkyl group, and they may be the same or different from each other, but at least one of them is a fluorine group or a fluorinated alkyl group. is there.)
Figure 2008123714
 (R5 and R6 are a hydrogen group, a fluorine group, an alkyl group or a fluorinated alkyl group, and they may be the same or different from each other, but at least one of them is a fluorine group or a fluorinated alkyl group. is there.) 前記溶媒中における前記環状炭酸エステルおよび前記鎖状炭酸エステルの含有量は、いずれも１重量％以上５０重量％以下の範囲内である、請求項１記載の二次電池。 The content of the cyclic carbonate and the chain carbonate ester is either in the range of less than 50 wt% 1 wt% or more, the secondary battery according to claim 1, wherein in said solvent. 前記環状炭酸エステルは、化３の（１）で表される４−フルオロ−１，３−ジオキソラン−２−オンおよび化３の（２）で表される４，５−ジフルオロ−１，３−ジオキソラン−２−オンのうちの少なくとも１種を含む、請求項１記載の二次電池。
Figure 2008123714
 The cyclic carbonate may of 3 (1) represented by 4-fluoro-1,3-dioxolan-2-one and of 3 (2) represented by 4,5-difluoro-1,3 including at least one kind of secondary battery according to claim 1, wherein one of dioxolan-2-one.
Figure 2008123714
 前記鎖状炭酸エステルは、化４の（１）で表される炭酸フルオロメチルメチルおよび化４の（２）で表される炭酸ビス（フルオロメチル）のうちの少なくとも１種を含む、請求項１記載の二次電池。
Figure 2008123714
 It said chain carbonate comprises at least one of bis (fluoromethyl) carbonate represented by 4 (1) represented by the fluoromethyl methyl carbonate and of 4 of (2), according to claim 1 The secondary battery as described.
Figure 2008123714
 前記溶媒は、前記環状炭酸エステルとして４，５−ジフルオロ−１，３−ジオキソラン−２−オンを含むと共に、前記鎖状炭酸エステルとして炭酸ビス（フルオロメチル）を含む、請求項１記載の二次電池。 The solvent, together comprise a 4,5-difluoro-1,3-dioxolan-2-one as the cyclic carbonate, including bis (fluoromethyl) carbonate as the chain carbonate, the secondary of claim 1, wherein battery. 前記溶媒は、炭酸エチレン、炭酸プロピレン、炭酸ジメチル、炭酸ジエチルおよび炭酸エチルメチルのうちの少なくとも１種、スルトン、酸無水物、あるいは不飽和結合を有する環状炭酸エステルを含む、請求項１記載の二次電池。 The solvent is ethylene carbonate, propylene carbonate, dimethyl carbonate, at least one of diethyl carbonate and carbonate Echirumechi Le, including sultones, acid anhydride, or a cyclic ester carbonate having an unsaturated bond, according to claim 1, wherein two Next battery. 前記電解質塩は、六フッ化リン酸リチウム（ＬｉＰＦ 6 ）、四フッ化ホウ酸リチウム（ＬｉＢＦ 4 ）、過塩素酸リチウム（ＬｉＣｌＯ 4 ）、六フッ化ヒ酸リチウム（ＬｉＡｓＦ 6 ）および化５で表される化合物のうちの少なくとも１種を含む、請求項１記載の二次電池。
Figure 2008123714
 （Ｒ１は−ＯＣ−Ｒ３−ＣＯ−、−ＯＣ−Ｃ（Ｒ４）（Ｒ５）−あるいは−ＯＣ−ＣＯ−であり、Ｒ２はハロゲン基、アルキル基、ハロゲン化アルキル基、アリール基あるいはハロゲン化アリール基である。ただし、Ｒ３はアルキレン基、ハロゲン化アルキレン基、アリーレン基あるいはハロゲン化アリーレン基であり、Ｒ４およびＲ５はアルキル基、ハロゲン化アルキル基、アリール基あるいはハロゲン化アリール基である。Ｘ１およびＸ２は酸素あるいは硫黄である。Ｍ１は短周期型周期表における１Ａ族元素あるいは２Ａ族元素、またはアルミニウムであり、Ｍ２は遷移金属元素、または短周期型周期表における３Ｂ族元素、４Ｂ族元素あるいは５Ｂ族元素である。なお、ａは１〜４の整数であり、ｂは０あるいは１〜８の整数であり、ｃ、ｄ、ｅおよびｆは１〜３の整数である。） The electrolyte salt, lithium hexafluorophosphate (LiPF 6), lithium tetrafluoroborate (LiBF 4), lithium perchlorate (LiClO 4), with lithium hexafluoroarsenate (LiAsF 6), and of 5 including at least one kind of secondary battery according to claim 1, wherein one of the compounds represented by.
Figure 2008123714
 (R1 is -OC-R3-CO-, -OC-C (R4) (R5)-or -OC-CO-, and R2 is a halogen group, an alkyl group, a halogenated alkyl group, an aryl group or an aryl halide) Wherein R3 is an alkylene group, a halogenated alkylene group, an arylene group or a halogenated arylene group, and R4 and R5 are an alkyl group, a halogenated alkyl group, an aryl group or a halogenated aryl group, X1 and X2 is oxygen or sulfur, M1 is a group 1A element or group 2A element or aluminum in the short period periodic table, and M2 is a transition metal element, or group 3B element, group 4B element or short element in the short period periodic table It is a group 5B element, where a is an integer of 1 to 4, and b is 0 or an integer of 1 to 8. c, d, e and f is an integer of 1-3.) 前記化５に示したＭ２は、ホウ素（Ｂ）である、請求項７記載の二次電池。 The secondary battery according to claim 7 , wherein M2 shown in Chemical Formula 5 is boron (B). 前記負極は、ケイ素（Ｓｉ）の単体、合金および化合物、ならびにスズ（Ｓｎ）の単体、合金および化合物のうちの少なくとも１種を含有する、請求項１記載の二次電池。 The negative electrode, elemental silicon (Si), alloys and compounds, and at least one contains a secondary battery according to claim 1, wherein one of the single, alloys and compounds of tin (Sn). 溶媒と、電解質塩とを含み、前記溶媒は、化６で表される環状炭酸エステルと、化７で表される鎖状炭酸エステルとを含む、電解液。
Figure 2008123714
 （Ｒ１〜Ｒ４は水素基、フッ素基、アルキル基あるいはフッ素化アルキル基であり、それらは互いに同一でもよいし異なってもよいが、それらのうちの少なくとも１つはフッ素基あるいはフッ素化アルキル基である。）
Figure 2008123714
 （Ｒ５およびＲ６は水素基、フッ素基、アルキル基あるいはフッ素化アルキル基であり、それらは互いに同一でもよいし異なってもよいが、それらのうちの少なくとも１つはフッ素基あるいはフッ素化アルキル基である。） It is seen containing a solvent and an electrolyte salt, wherein the solvent comprises a cyclic carbonate represented by Chemical Formula 6 and a chain carbonate represented by Chemical Formula 7, the electrolyte solution.
Figure 2008123714
 (R1 to R4 are a hydrogen group, a fluorine group, an alkyl group or a fluorinated alkyl group, and they may be the same or different from each other, but at least one of them is a fluorine group or a fluorinated alkyl group. is there.)
Figure 2008123714
 (R5 and R6 are a hydrogen group, a fluorine group, an alkyl group or a fluorinated alkyl group, and they may be the same or different from each other, but at least one of them is a fluorine group or a fluorinated alkyl group. is there.) 前記溶媒中における前記環状炭酸エステルおよび前記鎖状炭酸エステルの含有量は、いずれも１重量％以上５０重量％以下の範囲内である、請求項１０記載の電解液。 11. The electrolytic solution according to claim 10 , wherein the content of the cyclic carbonate and the chain carbonate in the solvent is in the range of 1 wt% to 50 wt%. 前記環状炭酸エステルは、化８（１）で表される４−フルオロ−１，３−ジオキソラン−２−オンおよび化８の（２）で表される４，５−ジフルオロ−１，３−ジオキソラン−２−オンのうちの少なくとも１種を含む、請求項１０記載の電解液。
Figure 2008123714
 The cyclic ester carbonate includes 4-fluoro-1,3-dioxolan-2-one represented by Chemical Formula 8 (1) and 4,5-difluoro-1,3-dioxolane represented by Chemical Formula 8 (2). including at least one kind of claim 10 electrolyte according among 2-one.
Figure 2008123714
 前記鎖状炭酸エステルは、化９の（１）で表される炭酸フルオロメチルメチルおよび化９の（２）で表される炭酸ビス（フルオロメチル）のうちの少なくとも１種を含む、請求項１０記載の電解液。
Figure 2008123714
 Said chain carbonate comprises at least one of bis (fluoromethyl) carbonate represented by 9 (1) represented by fluoromethyl methyl and of 9 carbonation (2), according to claim 10 Electrolyte of description.
Figure 2008123714
 前記溶媒は、前記環状炭酸エステルとして４，５−ジフルオロ−１，３−ジオキソラン−２−オンを含むと共に、前記鎖状炭酸エステルとして炭酸ビス（フルオロメチル）を含む、請求項１０記載の電解液。 The solvent, together comprise a 4,5-difluoro-1,3-dioxolan-2-one as the cyclic carbonate, including bis (fluoromethyl) carbonate as the chain carbonate electrolyte of claim 10, wherein . 前記溶媒は、炭酸エチレン、炭酸プロピレン、炭酸ジメチル、炭酸ジエチルおよび炭酸エチルメチルのうちの少なくとも１種、スルトン、酸無水物、あるいは不飽和結合を有する環状炭酸エステルを含む、請求項１０記載の電解液。 The solvent is ethylene carbonate, propylene carbonate, comprises at least one of dimethyl carbonate, diethyl carbonate and Echirumechi Le, sultones, acid anhydride, or a cyclic ester carbonate having an unsaturated bond, electrolyte according to claim 10, wherein liquid. 前記電解質塩は、六フッ化リン酸リチウム、四フッ化ホウ酸リチウム、過塩素酸リチウム、六フッ化ヒ酸リチウムおよび化１０で表される化合物のうちの少なくとも１種を含む、請求項１０記載の電解液。
Figure 2008123714
 （Ｒ１は−ＯＣ−Ｒ３−ＣＯ−、−ＯＣ−Ｃ（Ｒ４）（Ｒ５）−あるいは−ＯＣ−ＣＯ−であり、Ｒ２はハロゲン基、アルキル基、ハロゲン化アルキル基、アリール基あるいはハロゲン化アリール基である。ただし、Ｒ３はアルキレン基、ハロゲン化アルキレン基、アリーレン基あるいはハロゲン化アリーレン基であり、Ｒ４およびＲ５はアルキル基、ハロゲン化アルキル基、アリール基あるいはハロゲン化アリール基である。Ｘ１およびＸ２は酸素（Ｏ）あるいは硫黄（Ｓ）である。Ｍ１は短周期型周期表における１Ａ族元素あるいは２Ａ族元素、またはアルミニウム（Ａｌ）であり、Ｍ２は遷移金属元素、または短周期型周期表における３Ｂ族元素、４Ｂ族元素あるいは５Ｂ族元素である。なお、ａは１〜４の整数であり、ｂは０あるいは１〜８の整数であり、ｃ、ｄ、ｅおよびｆは１〜３の整数である。） The electrolyte salt includes lithium hexafluorophosphate, lithium tetrafluoroborate, lithium perchlorate, at least one of compounds represented by lithium hexafluoroarsenate and of 10, claim 10. The electrolytic solution according to 10 .
Figure 2008123714
 (R1 is -OC-R3-CO-, -OC-C (R4) (R5)-or -OC-CO-, and R2 is a halogen group, an alkyl group, a halogenated alkyl group, an aryl group or an aryl halide) Wherein R3 is an alkylene group, a halogenated alkylene group, an arylene group or a halogenated arylene group, and R4 and R5 are an alkyl group, a halogenated alkyl group, an aryl group or a halogenated aryl group, X1 and X2 is oxygen (O) or sulfur (S), M1 is a group 1A element or group 2A element or aluminum (Al) in the short period periodic table, and M2 is a transition metal element or short period type periodic table A group 3B element, a group 4B element, or a group 5B element, wherein a is an integer of 1 to 4 and b is 0 Is an integer from 1 to 8, c, d, e and f is an integer of 1-3.) 前記化１０に示したＭ２は、ホウ素である、請求項１６記載の電解液。 The electrolytic solution according to claim 16 , wherein M2 shown in Chemical Formula 10 is boron.
JP2006303038A 2006-11-08 2006-11-08 Electrolytic solution and battery Pending JP2008123714A (en)

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