CN1882436A - 复合微多孔膜及其制造方法和用途 - Google Patents
复合微多孔膜及其制造方法和用途 Download PDFInfo
- Publication number
- CN1882436A CN1882436A CNA2004800341903A CN200480034190A CN1882436A CN 1882436 A CN1882436 A CN 1882436A CN A2004800341903 A CNA2004800341903 A CN A2004800341903A CN 200480034190 A CN200480034190 A CN 200480034190A CN 1882436 A CN1882436 A CN 1882436A
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- China
- Prior art keywords
- microporous film
- coating
- polyolefin
- fluororesin
- composite microporous
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
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Images
Classifications
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Abstract
Description
例No. | 实施例1 | 实施例2 | 实施例3 | 实施例4 |
聚烯烃微多孔膜 | PE微多孔膜(4) | PE微多孔膜(4) | PE微多孔膜(4) | PE微多孔膜(4) |
涂布液 | ||||
氟树脂含量(wt%) | P(VDF-HFP)共聚物(5)2.7 | P(VDF-HFP)共聚物(5)2.7 | P(VDF-HFP)共聚物(5)2.7 | P(VDF-HFP)共聚物(7)2.7 |
良溶剂含量(wt%) | 丙酮73.0 | 丙酮73.0 | 丙酮68.1 | 丙酮77.8 |
不良溶剂μ(1)(Debye)含量(wt%) | 混合二甲苯(6)0.44/0.3424.3 | 甲苯0.37524.3 | 1-丁醇1.6829.2 | 混合二甲苯(6)0.44/0.3419.5 |
涂布后向不良溶剂的浸渍 | ||||
不良溶剂μ(1)(Debye)浸渍时间(分) | --- | --- | --- | --- |
干燥条件 | ||||
温度(℃) | 60 | 60 | 60 | 60 |
时间(分) | 2 | 2 | 2 | 2 |
复合微多孔膜的物性 | ||||
覆盖层的状态 | 形成了圆柱状的细孔 | 形成了圆柱状的细孔 | 形成了圆柱状的细孔,但氟树脂堆积成为粒子状 | 形成了圆柱状的细孔 |
覆盖层的厚度(μm) | 1.0 | 1.0 | 0.9 | 0.5 |
覆盖层的平均贯通孔径(μm) | 2 | 2 | 2 | 5 |
透气度(sec/100cc) | 523 | 548 | 1208 | 419 |
穿刺强度(mN/20μm) | 3733 | 3645 | 3361 | 3616 |
热收缩率TD(%) | 29 | 29 | 29 | 30 |
封闭特性(2)(sec/100cc) | 27000 | 55000 | 31000 | 41000 |
熔化温度(℃) | 160 | 160 | 160 | 160 |
和电极的粘接性(3)正极负极 | ○○ | ○○ | ○○ | ○○ |
例No. | 实施例5 | 实施例6 | 比较例1 | 比较例2 |
聚烯烃微多孔膜 | PE微多孔膜(4) | PE微多孔膜(4) | PE微多孔膜(4) | PE微多孔膜(4) |
涂布液 | ||||
氟树脂含量(wt%) | P(VDF-HFP)共聚物(7)2.7 | P(VDF-HFP)共聚物(8)2.7 | P(VDF-HFP)共聚物(5)2.7 | P(VDF-HFP)共聚物(5)2.7 |
良溶剂含量(wt%) | 丙酮77.8 | 丙酮77.8 | 丙酮97.3 | 丙酮68.1 |
不良溶剂μ(1)(Debye)含量(wt%) | 甲苯0.37519.5 | 混合二甲苯(6)0.44/0.3419.5 | --- | 乙酸丁酯1.8429.2 |
涂布后向不良溶剂的浸渍 | ||||
不良溶剂μ(1)(Debye)浸渍时间(分) | --- | --- | --- | --- |
干燥条件 | ||||
温度(℃) | 60 | 60 | 60 | 60 |
时间(分) | 2 | 2 | 2 | 2 |
复合微多孔膜的物性 | ||||
覆盖层的状态 | 形成了圆柱状的细孔 | 形成了圆柱状的细孔 | 细孔的形成不明显,氟树脂堆积成为粒子状 | 细孔的形成不明显,氟树脂堆积成为粒子状 |
覆盖层的厚度(μm) | 0.5 | 0.4 | 0.8 | 0.5 |
覆盖层的平均贯通孔径(μm) | 5 | 5 | 不能测定 | 不能测定 |
透气度(sec/100cc) | 683 | 362 | 65000 | 5800 |
穿刺强度(mN/20μm) | 3410 | 3361 | 3528 | 3479 |
热收缩率TD(%) | 30 | 29 | 28 | 28 |
封闭特性(2)(sec/100cc) | 100000 | 31000 | >100000 | 60000 |
熔化温度(℃) | 160 | 160 | 160 | 160 |
和电极的粘接性(3)正极负极 | ○○ | ○○ | ○○ | ○○ |
例No. | 比较例3 | 比较例4 | 比较例5 | 比较例6 |
聚烯烃微多孔膜 | PE微多孔膜(4) | PE微多孔膜(4) | PE微多孔膜(4) | PE微多孔膜(4) |
涂布液 | ||||
氟树脂含量(wt%) | P(VDF-HFP)共聚物(5)2.7 | P(VDF-HFP)共聚物(5)2.7 | P(VDF-HFP)共聚物(5)2.7 | P(VDF-HFP)共聚物(5)2.7 |
良溶剂含量(wt%) | NMP(9)97.3 | NMP(9)97.3 | NMP(9)97.3 | NMP(9)97.3 |
不良溶剂μ(1)(Debye)含量(wt%) | --- | --- | --- | --- |
涂布后向不良溶剂的浸渍 | ||||
不良溶剂μ(1)(Debye)浸渍时间(分) | 乙醇1.680.1 | 1-丁醇1.680.1 | 混合二甲苯(6)0.44/0.340.1 | 甲苯0.3750.1 |
干燥条件 | ||||
温度(℃) | 60 | 60 | 60 | 60 |
时间(分) | 5 | 5 | 5 | 5 |
复合微多孔膜的物性 | ||||
覆盖层的状态 | 氟树脂堆积成为纤维状 | 不只是细孔的形成不充分,而且覆盖层剥离 | 不只是细孔的形成不充分,而且覆盖层剥离 | 不只是细孔的形成不充分,而且覆盖层剥离 |
覆盖层的厚度(μm) | 0.8 | 0 | 0 | 0 |
覆盖层的平均贯通孔径(μm) | 不能测量 | - | - | - |
透气度(sec/100cc) | 1551 | 265 | 260 | 259 |
穿刺强度(mN/20μm) | 3224 | 3038 | 2999 | 3018 |
热收缩率TD(%) | 29 | 32 | 32 | 32 |
封闭特性(2)(sec/100cc) | 50000 | 1900 | 1810 | 1850 |
熔化温度(℃) | 160 | 155 | 155 | 155 |
和电极的粘接性(3)正极负极 | ○○ | ×× | ×× | ×× |
例No. | 比较例7 |
聚烯烃微多孔膜 | PE微多孔膜(4) |
涂布液 | |
氟树脂含量(wt%) | -- |
良溶剂含量(wt%) | -- |
不良溶剂μ(1)(Debye)含量(wt%) | -- |
涂布后向不良溶剂的浸渍 | |
不良溶剂μ(1)(Debye)浸渍时间(分) | -- |
干燥条件 | |
温度(℃) | - |
时间(分) | - |
复合微多孔膜的物性 | |
覆盖层的状态 | - |
覆盖层的厚度(μm) | - |
覆盖层的平均贯通孔径(μm) | - |
透气度(sec/100cc) | 253 |
穿刺强度(mN/20μm) | 3028 |
热收缩率TD(%) | 16(MD)/5.5(TD)(10) |
封闭特性(2)(sec/100cc) | 1820 |
熔化温度(℃) | 155 |
和电极的粘接性(3)正极负极 | ×× |
Claims (5)
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- 2004-11-17 EP EP04818915A patent/EP1685955A4/en not_active Withdrawn
- 2004-11-17 US US10/595,881 patent/US7781094B2/en not_active Expired - Fee Related
- 2004-11-17 CN CN2004800341903A patent/CN1882436B/zh active Active
- 2004-11-17 JP JP2005515620A patent/JP5057419B2/ja active Active
- 2004-11-17 KR KR1020067012026A patent/KR101110264B1/ko active IP Right Grant
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US20070072069A1 (en) | 2007-03-29 |
US7781094B2 (en) | 2010-08-24 |
KR101110264B1 (ko) | 2012-03-13 |
TW200535004A (en) | 2005-11-01 |
EP1685955A4 (en) | 2009-10-21 |
TWI367827B (en) | 2012-07-11 |
JP5057419B2 (ja) | 2012-10-24 |
JPWO2005049318A1 (ja) | 2007-06-07 |
KR20060101541A (ko) | 2006-09-25 |
EP1685955A1 (en) | 2006-08-02 |
WO2005049318A1 (ja) | 2005-06-02 |
CN1882436B (zh) | 2010-12-15 |
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