JP2009544794A - 高分子電解質用リン酸塩系アクリレート架橋剤及びこれを含有する組成物 - Google Patents
高分子電解質用リン酸塩系アクリレート架橋剤及びこれを含有する組成物 Download PDFInfo
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- JP2009544794A JP2009544794A JP2009521701A JP2009521701A JP2009544794A JP 2009544794 A JP2009544794 A JP 2009544794A JP 2009521701 A JP2009521701 A JP 2009521701A JP 2009521701 A JP2009521701 A JP 2009521701A JP 2009544794 A JP2009544794 A JP 2009544794A
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- Prior art keywords
- polymer electrolyte
- phosphate
- formula
- crosslinking agent
- electrolyte composition
- Prior art date
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- 239000005518 polymer electrolyte Substances 0.000 title claims abstract description 62
- 239000000203 mixture Substances 0.000 title claims abstract description 37
- 229910019142 PO4 Inorganic materials 0.000 title claims abstract description 34
- 239000003431 cross linking reagent Substances 0.000 title claims abstract description 34
- 239000010452 phosphate Substances 0.000 title claims abstract description 34
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 title claims abstract description 33
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 title claims abstract description 22
- 229910052744 lithium Inorganic materials 0.000 claims abstract description 20
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- 239000003999 initiator Substances 0.000 claims description 15
- 229910003002 lithium salt Inorganic materials 0.000 claims description 14
- 159000000002 lithium salts Chemical class 0.000 claims description 14
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- 150000001875 compounds Chemical class 0.000 abstract description 5
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- RBVLUTAXWVILBT-UHFFFAOYSA-N ethyl prop-2-eneperoxoate Chemical compound CCOOC(=O)C=C RBVLUTAXWVILBT-UHFFFAOYSA-N 0.000 description 5
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- AOBIOSPNXBMOAT-UHFFFAOYSA-N 2-[2-(oxiran-2-ylmethoxy)ethoxymethyl]oxirane Chemical compound C1OC1COCCOCC1CO1 AOBIOSPNXBMOAT-UHFFFAOYSA-N 0.000 description 2
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- 229910000147 aluminium phosphate Inorganic materials 0.000 description 2
- SESFRYSPDFLNCH-UHFFFAOYSA-N benzyl benzoate Chemical compound C=1C=CC=CC=1C(=O)OCC1=CC=CC=C1 SESFRYSPDFLNCH-UHFFFAOYSA-N 0.000 description 2
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- QNODIIQQMGDSEF-UHFFFAOYSA-N (1-hydroxycyclohexyl)-phenylmethanone Chemical compound C=1C=CC=CC=1C(=O)C1(O)CCCCC1 QNODIIQQMGDSEF-UHFFFAOYSA-N 0.000 description 1
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- 239000012956 1-hydroxycyclohexylphenyl-ketone Substances 0.000 description 1
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- XMLYCEVDHLAQEL-UHFFFAOYSA-N 2-hydroxy-2-methyl-1-phenylpropan-1-one Chemical compound CC(C)(O)C(=O)C1=CC=CC=C1 XMLYCEVDHLAQEL-UHFFFAOYSA-N 0.000 description 1
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- OMIGHNLMNHATMP-UHFFFAOYSA-N 2-hydroxyethyl prop-2-enoate Chemical compound OCCOC(=O)C=C OMIGHNLMNHATMP-UHFFFAOYSA-N 0.000 description 1
- LWRBVKNFOYUCNP-UHFFFAOYSA-N 2-methyl-1-(4-methylsulfanylphenyl)-2-morpholin-4-ylpropan-1-one Chemical compound C1=CC(SC)=CC=C1C(=O)C(C)(C)N1CCOCC1 LWRBVKNFOYUCNP-UHFFFAOYSA-N 0.000 description 1
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- OPHUWKNKFYBPDR-UHFFFAOYSA-N copper lithium Chemical compound [Li].[Cu] OPHUWKNKFYBPDR-UHFFFAOYSA-N 0.000 description 1
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Images
Classifications
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F20/00—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride, ester, amide, imide or nitrile thereof
- C08F20/02—Monocarboxylic acids having less than ten carbon atoms, Derivatives thereof
- C08F20/04—Acids, Metal salts or ammonium salts thereof
- C08F20/06—Acrylic acid; Methacrylic acid; Metal salts or ammonium salts thereof
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F9/00—Compounds containing elements of Groups 5 or 15 of the Periodic Table
- C07F9/02—Phosphorus compounds
- C07F9/06—Phosphorus compounds without P—C bonds
- C07F9/08—Esters of oxyacids of phosphorus
- C07F9/09—Esters of phosphoric acids
- C07F9/091—Esters of phosphoric acids with hydroxyalkyl compounds with further substituents on alkyl
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F222/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a carboxyl radical and containing at least one other carboxyl radical in the molecule; Salts, anhydrides, esters, amides, imides, or nitriles thereof
- C08F222/10—Esters
- C08F222/1006—Esters of polyhydric alcohols or polyhydric phenols
- C08F222/103—Esters of polyhydric alcohols or polyhydric phenols of trialcohols, e.g. trimethylolpropane tri(meth)acrylate
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F230/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and containing phosphorus, selenium, tellurium or a metal
- C08F230/02—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and containing phosphorus, selenium, tellurium or a metal containing phosphorus
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Abstract
【選択図】図1
Description
上記式2中、R3及びR4は各々炭素数1乃至10の直鎖または分岐鎖アルキル基であり、R5、R6及びR7は各々水素原子またはメチル基であり、o、p及びqは各々0〜20の整数(但し、o、p及びqが同時に0である場合は除く)である。
市販されているヒドロキシエチルアクリレート(アルドリッチ社)をヒドロキシエトキシアクリレート(HOA、n=1)として使用した。
3口フラスコにトリエチレングリコール(20g、0.133mol、n=3)及びトリエチルアミン(13.5g、0.133mol)をジクロロメタン200mLに溶解した後、0℃で攪拌しながら、ジクロロメタン100mLに溶解された塩化アクリロイル溶液(12g、0.133mol)を滴下した。約12時間反応させた後、沈殿物を除去し、減圧下で蒸発することにより生成物を得た。白色の粘着液体生成物をジクロロメタンに溶解し、水で数回抽出した。ジクロロメタン層を分離して、MgSO4で乾燥し、減圧下で蒸発した。シリカカラムクロマトグラフィを用いて生成物を精製することにより、約12gのヒドロキシトリ(エトキシ)アクリレート(HOA、n=3)を得た(収率45%)。
1H−NMR(300MHz,CDCl3):3.05−3.15(s,1H)、3.52−3.67(m,10H)、4.3−4.4(m,2H)、5.7−5.85(d,1H)、6.0−6.2(m,1H)、6.3−6.45(d,1H)
前記製造例2と同様の方法で実施し、ペンタエチレングリコール(n=5)32gとトリエチルアミン8.5g及び塩酸アクリロイル7.6gを反応させることで、ヒドロキシペンタ(エトキシ)アクリレート(HOA、n=5)を得た(収率43%)。
1H−NMR(300MHz,CDCl3):3.05−3.15(s,1H)、3.52−3.67(m,18H)、4.3−4.4(m,2H)、5.7−5.85(d,1H)、6.0−6.2(m,1H)、6.3−6.45(d,1H)
前記実施例2と同様の方法で実施し、ポリエチレングリコール(n=13.2、分子量1,000)、トリエチルアミン8.5g及び塩化アクリロイル7.6gを反応させることで、ポリエチレングリコールモノアクリレート(HOA、n=13.2)を得た(収率39%)。
1H−NMR(300MHz,CDCl3):3.05−3.15(s,1H)、3.52−3.67(m,51H)、4.3−4.4(m,2H)、5.7−5.85(d,1H)、6.0−6.2(m,1H)、6.3−6.45(d,1H)
3口フラスコにヒドロキシエトキシアクリレート(12g、0.1mol)及びトリエチルアミン(10.5g、0.1mol)をジクロロメタン100mLに溶解した後、0℃で攪拌しながら、ジクロロメタン80mLに溶解されたオキシ三塩化リン溶液(5g、0.0326mol)を滴下した。約12時間反応させた後、沈殿物を除去し、減圧下で蒸発することにより生成物を得た。白色の粘着液体生成物をジクロロメタンに溶解し、水で数回抽出した。ジクロロメタン層を分離して、MgSO4で乾燥し、減圧下で蒸発した。シリカカラムクロマトグラフィを用いて生成物を精製することにより、約12gのヒドロキシトリス(アクリロイルエトキシ)リン酸塩(POA、n=1)を得た(収率45%)。
1H−NMR(300MHz,CDCl3):4.2−4.45(m,12H)、5.7−5.85(d,3H)、6.0−6.2(m,3H)、6.3−6.45(d,3H)
前記実施例1と同様の方法で実施し、製造例2で製造したヒドロキシトリ(エトキシ)アクリレート5.2g、トリエチルアミン2.58g及びオキシ三塩化リン1.18gを反応させることで、2.5gのトリス(アクリロイルトリエトキシ)リン酸(POA、n=3)を得た(収率50%)。
1H−NMR(300MHz,CDCl3):4.2−4.45(m,36H)、5.7−5.85(d,3H)、6.0−6.2(m,3H)、6.3−6.45(d,3H)
前記実施例1と同様の方法で実施し、製造例3で製造したヒドロキシペンタ(エトキシ)アクリレート5g、トリエチルアミン1.73g及びオキシ三塩化リン0.8gを反応させることで、2gのトリス(アクリロイルペンタエトキシ)リン酸(POA、n=5)を得た(収率45%)。
1H−NMR(300MHz,CDCl3):4.2−4.45(m,60H)、5.7−5.85(d,3H)、6.0−6.2(m,3H)、6.3−6.45(d,3H)
前記実施例1と同様の方法で実施し、製造例4で製造したポリエチレングリコールモノアクリレート(HOA、n=13.2)16.55g、トリエチルアミン1.73g及びオキシ三塩化リン0.8gを反応させることで、6.4gのトリス(アクリロイルポリエチレングリコール)リン酸(POA、n=10.3)を得た(収率40%)。
1H−NMR(300MHz,CDCl3):4.2−4.45(m,158H)、5.7−5.85(d,3H)、6.0−6.2(m,3H)、6.3−6.45(d,3H)
1.可塑剤含量に伴うイオン伝導性試験
高分子電解質組成物の可塑剤含量によって電解質のイオン伝導性を測定した。リン酸塩系アクリレート(POA、n=3)を架橋剤として、LiCF3SO3、LiPF6をリチウム塩として使用し、ポリ(エチレングリコール)ジメチルエーテル(n=4)と過酸化ベンゾイル(BPO)を各々可塑剤と開始剤として使用した。
前記組成物をバンド形伝導ガラス板またはリチウム−銅ホイルに注入した後、熱架橋した。バンド形またはサンドイッチ形電極間のACインピーダンスをアルゴン雰囲気下で測定して、周波数応答分析器で分析することで、複素インピーダンスを得た。バンド形電極は、マスキングテープ(1mm×2cm)を伝導性ガラス(ITO)の中央に付着し、エッチング、洗浄及び乾燥して製造された。可塑剤含量に従ってイオン伝導性を測定し、その結果を表1に示した。
更に、リン酸塩系アクリレート(POA、n=1〜13.2)、LiCF3SO3及びBPOを各々架橋剤、リチウム塩及び開始剤として使用した。PEGDMe(n=4,6,7)及びプロピレン・カーボネート(PC)とエチレン・カーボネート(EC)が1:1の混合比で混合された溶媒を可塑剤として使用し、製造された電解質薄膜のイオン伝導性を測定した。その結果を表2に示し、可塑剤の種類によるイオン伝導性依存度を図1に示した。
架橋剤としてリン酸塩系アクリレート(POA、n=3)を使用して、可塑剤としてPEGDMeまたはEC/PC(1M LiPF6)を80質量%含むようにすることで、前述した方法によりニッケル電極(1cm×1cm)上に固体高分子電解質用薄膜を製造した。リチウム板の間に電解質を配置した後、真空包装することで、電気化学的安定性測定用セルを製造した。電気化学的安定性は、線形掃引ボルタンメトリー法を利用して−0.3〜5.5Vの電位範囲、10mV/secの掃引速度で測定され、その結果を図2に示した。
図2に示されるように、リチウムの可逆性酸化/還元が0.5〜0.2Vの電位範囲で観察された。PEGDMEを可塑剤として使用するとき、電解質が分解される電流が5V未満で観察されなかった。これらの結果により、高分子電解質は、リチウム基準電極で5Vまでの電圧で、電気化学的に安定するため、リチウムポリマー電池の高分子電解質に適用することができる。
Claims (7)
- 式1で表されるリン酸塩系アクリレート架橋剤0.1〜95質量%と、
式2で表されるポリアルキレングリコールジアルキルエーテル及び極性非プロトン性溶媒の中から選択される1種または2種以上の可塑剤0.1〜98質量%と、
リチウム塩3〜40質量%と、
開始剤0.1〜5質量%と、
を含有する固体高分子電解質組成物。
式1
上記式1中、R1及びR2は各々水素原子またはメチル基であり、nは1〜20の整数である。
式2
上記式2中、R3及びR4は各々炭素数1乃至10の直鎖または分岐鎖アルキル基であり、R5、R6及びR7は各々水素原子またはメチル基であり、o、p及びqは各々0〜20の整数(但し、o、p及びqが同時に0である場合は除く)である。 - 前記極性非プロトン性溶媒は、炭酸アルキレン系、アルキルテトラヒドロフラン系、ジオキシラン系、ラクトン系及びアセトニトリル系溶媒からなる群から選択される、請求項2に記載の固体高分子電解質組成物。
- 前記リチウム塩は、LiClO4、LiCF3SO3、LiBFS4、LiPF6、LiAsF6及びLi(CF3SO2)2Nからなる群から選択される、請求項2に記載の固体高分子電解質組成物。
- 請求項2乃至4のいずれか一項記載の固体高分子電解質組成物がコーティングされた固体高分子電解質用薄膜。
- 請求項2乃至4のいずれか一項記載の固体高分子電解質組成物を含有するリチウムポリマー二次電池用高分子電解質。
- 請求項2乃至4のいずれか一項記載の固体高分子電解質組成物を含有するリチウムポリマー二次電池。
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JP2016503572A (ja) * | 2013-10-31 | 2016-02-04 | エルジー・ケム・リミテッド | ゲルポリマー電解質及びこれを含む電気化学素子 |
US10355309B2 (en) | 2013-10-31 | 2019-07-16 | Lg Chem, Ltd. | Gel polymer electrolyte and electrochemical device including the same |
JP2018170266A (ja) * | 2017-03-30 | 2018-11-01 | Tdk株式会社 | 二次電池用電解質および二次電池 |
CN110402516A (zh) * | 2017-09-21 | 2019-11-01 | 株式会社Lg化学 | 聚合物电解质和其制备方法 |
JP2020510983A (ja) * | 2017-09-21 | 2020-04-09 | エルジー・ケム・リミテッド | 高分子電解質及びこの製造方法 |
CN110402516B (zh) * | 2017-09-21 | 2022-06-21 | 株式会社Lg化学 | 聚合物电解质和其制备方法 |
US11387489B2 (en) | 2017-09-21 | 2022-07-12 | Lg Energy Solution, Ltd. | Polymer electrolyte and preparation method therefor |
JP7101707B2 (ja) | 2017-09-21 | 2022-07-15 | エルジー エナジー ソリューション リミテッド | 高分子電解質及びこの製造方法 |
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KR100744835B1 (ko) | 2007-08-01 |
US20100003604A1 (en) | 2010-01-07 |
KR100744835B9 (ko) | 2022-09-06 |
JP5247692B2 (ja) | 2013-07-24 |
WO2008013417A1 (en) | 2008-01-31 |
US8137849B2 (en) | 2012-03-20 |
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