JP6104561B2 - 非水系蓄電デバイス用材料及びそれを用いた非水系蓄電デバイス - Google Patents
非水系蓄電デバイス用材料及びそれを用いた非水系蓄電デバイス Download PDFInfo
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- JP6104561B2 JP6104561B2 JP2012234611A JP2012234611A JP6104561B2 JP 6104561 B2 JP6104561 B2 JP 6104561B2 JP 2012234611 A JP2012234611 A JP 2012234611A JP 2012234611 A JP2012234611 A JP 2012234611A JP 6104561 B2 JP6104561 B2 JP 6104561B2
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- 238000011160 research Methods 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- CQLFBEKRDQMJLZ-UHFFFAOYSA-M silver acetate Chemical compound [Ag+].CC([O-])=O CQLFBEKRDQMJLZ-UHFFFAOYSA-M 0.000 description 1
- 229940071536 silver acetate Drugs 0.000 description 1
- 229910001923 silver oxide Inorganic materials 0.000 description 1
- 239000001632 sodium acetate Substances 0.000 description 1
- 235000017281 sodium acetate Nutrition 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007784 solid electrolyte Substances 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- 238000000859 sublimation Methods 0.000 description 1
- 230000008022 sublimation Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 150000004763 sulfides Chemical class 0.000 description 1
- HXJUTPCZVOIRIF-UHFFFAOYSA-N sulfolane Chemical compound O=S1(=O)CCCC1 HXJUTPCZVOIRIF-UHFFFAOYSA-N 0.000 description 1
- 230000002459 sustained effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 229940073455 tetraethylammonium hydroxide Drugs 0.000 description 1
- LRGJRHZIDJQFCL-UHFFFAOYSA-M tetraethylazanium;hydroxide Chemical compound [OH-].CC[N+](CC)(CC)CC LRGJRHZIDJQFCL-UHFFFAOYSA-M 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- 125000000383 tetramethylene group Chemical group [H]C([H])([*:1])C([H])([H])C([H])([H])C([H])([H])[*:2] 0.000 description 1
- 125000003396 thiol group Chemical group [H]S* 0.000 description 1
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 1
- 229910001887 tin oxide Inorganic materials 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 150000003624 transition metals Chemical class 0.000 description 1
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/13—Energy storage using capacitors
Landscapes
- Electric Double-Layer Capacitors Or The Like (AREA)
- Cell Separators (AREA)
- Battery Electrode And Active Subsutance (AREA)
Description
MOS(=O)2−R1−Si(−O−)3 (1)
{式中Mはアルカリ金属イオン、R1は炭素数1〜5のアルキレン基を表す。}
〔2〕 前記〔1〕に記載の非水系蓄電デバイス用材料を用いた非水系蓄電デバイス。
MOS(=O)2−R1−Si(−O−) 3 (1)
{式中Mはアルカリ金属イオン、R1は炭素数1〜5のアルキレン基を表す。}
これらのうち特に好ましいのはリチウムイオン、ナトリウムイオンである。
LiOSO2−CH2CH2CH2Si(−O−)3
NaOSO2−CH2CH2CH2Si(−O−)3
KOSO2−CH2CH2CH2Si(−O−)3
HS−R1−Si(CH3)n(−Y)3−n (SC1)
(Y−)3−n(CH3)Si−R1−S−S−R1−Si(CH3)n(−Y)3−n (SC2)
{式中R1は炭素数1〜10のアルキレン基(本アルキレン鎖中に、ウレタン結合又はウレア結合を含有していてもよい)であり、Yは同一或いは異なってもよい炭素数1〜4のアルコキシ基又は水酸基、nは0又は1を表す。}
HSCH2CH2Si(OCH3)3
HSCH2CH2Si(OC2H5)3
(OC2H5)3SiCH2CH2CH2−S−S−CH2CH2CH2Si(OC2H5)3
熱処理温度は50℃〜250℃であり、好ましくは100℃〜200℃である。
3−(トリメトキシシリル)プロパン−1−チオール(チッソ製)1.0部(5.1モル部)をエタノール36部に溶解させた後、オルガノシリカゾル(日産化学製、30%イソプロパノール溶液)6.0部、水6.5部を加え24時間加熱還流した。冷却後過酸化水素水(三徳化学製、30%水溶液)3.5部(30.8モル部)を加え24時間加熱還流した。反応終了後室温まで冷却後、水酸化リチウム1水和物0.214部(5.1モル部)を少量の水に溶かして加え中和後、水を加えて全体の量を50部にすることにより、本発明の化合物、LiOSO2−CH2CH2CH2Si(−O−)3基で修飾されたイソプロパノールシリカゾルを含むエタノール溶液を得た。
正極活物質としてLiCoO2(平均粒径:10μm)を用いた。上記合成例で得たエタノール溶液を、エタノールで20倍に希釈した溶液50部にLiCoO210部を加え5分間超音波照射した。吸引ろ過後、乳鉢ですりつぶした後、150℃で2時間熱処理することにより修飾イソプロパノールシリカゾルで表面処理した正極活物質を得た。正極活物質に対し、修飾イソプロパノールシリカゾルの重量は0.2%であった(処理正極活物質1)。
未処理正極活物質(LiCoO2)、処理正極活物質1、処理正極活物質2を用い、正極を試作した。まず、前記3種類の活物質91重量部に導電材であるアセチレンブラックを4重量部、乾式混合した。バインダーであるPTFEを5重量部、加え混練し、更に、アセトンを加え、2軸ロールを用い混練混合し、圧延ロールを用いて厚さ80μmの正極シートを得た。この正極シートを所定の電極面積(14mm×20mm)に打ち抜き、導電性接着剤で厚さ20μmのアルミニウム箔に貼り付け、170℃で10時間真空乾燥することにより、3種類の正極(未処理正極、処理正極1、処理正極2)を得た。前記、Al箔上の電極層の密度はいずれも3.2g/cm3であった。
Claims (2)
- 下記式(1)で表される官能基でオルガノシリカゾル1gあたり0.55〜5.5mmol修飾された修飾オルガノシリカゾルで正極活物質が表面処理されている非水系蓄電デバイス用材料であって、正極活物質に対する前記修飾オルガノシリカゾル量が、0.2重量%以上0.5重量%以下であることを特徴とする非水系蓄電デバイス用材料。
MOS(=O)2−R1−Si(−O−)3 (1)
{式中Mはアルカリ金属イオン、R1は炭素数1〜5のアルキレン基を表す。} - 請求項1に記載の非水系蓄電デバイス用材料を用いた非水系蓄電デバイス。
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