Preparation method of composite coated lithium ion battery polyethylene diaphragm

The invention discloses a preparation method of a composite coated lithium ion battery polyethylene diaphragm. The aramid nanofiber, the polydopamine and the boehmite are used as a coating main body, and excellent thermal stability and rich polar groups are utilized, so that the problems of poor the...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: BAI YONGPING, QIAN JINGTING, LIU GAOJUN, LIU XINGYUAN, CHENG FENG, HE JINMEI, BAI YAOZONG
Format: Patent
Sprache:chi ; eng
Schlagworte:
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
container_end_page
container_issue
container_start_page
container_title
container_volume
creator BAI YONGPING
QIAN JINGTING
LIU GAOJUN
LIU XINGYUAN
CHENG FENG
HE JINMEI
BAI YAOZONG
description The invention discloses a preparation method of a composite coated lithium ion battery polyethylene diaphragm. The aramid nanofiber, the polydopamine and the boehmite are used as a coating main body, and excellent thermal stability and rich polar groups are utilized, so that the problems of poor thermal stability and poor lyophilic property to electrolyte of the polyethylene diaphragm are solved. Meanwhile, PDA is adopted for modifying PE, and the problem that the surface energy of the PE diaphragm and the surface energy of a coating layer are not matched can be greatly solved. The thermal shrinkage rate, surface wettability, mechanical property and electrochemical property tests verify the influence of the modified diaphragm on physical properties and electrochemical properties. 本发明公开了一种复合涂覆锂离子电池聚乙烯隔膜的制备方法。以芳纶纳米纤维、聚多巴胺和勃姆石为涂覆主体,利用优异的热稳定性以及丰富的极性基团,改善聚乙烯隔膜热稳定性差、对电解质亲液性差的问题。同时采用PDA改性PE,可以大幅改善PE隔膜与涂覆层间表面能不匹配的问题。经热收缩率、表面润湿性、力学性能及电化学性能测试验证改性隔膜对物理性能和电化学性能的影响。
format Patent
fullrecord <record><control><sourceid>epo_EVB</sourceid><recordid>TN_cdi_epo_espacenet_CN115224438A</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>CN115224438A</sourcerecordid><originalsourceid>FETCH-epo_espacenet_CN115224438A3</originalsourceid><addsrcrecordid>eNrjZAgMKEotSCxKLMnMz1PITS3JyE9RyE9TSM7PLcgvzixJBbISS1JTFHIySzIyS3MVQMqSEktKUosqFQrycyqBOipzUvNSFVIyEwsyihLTc3kYWNMSc4pTeaE0N4Oim2uIs4duakF-fGpxQWIyUHlJvLOfoaGpkZGJibGFozExagA7kjh-</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>patent</recordtype></control><display><type>patent</type><title>Preparation method of composite coated lithium ion battery polyethylene diaphragm</title><source>esp@cenet</source><creator>BAI YONGPING ; QIAN JINGTING ; LIU GAOJUN ; LIU XINGYUAN ; CHENG FENG ; HE JINMEI ; BAI YAOZONG</creator><creatorcontrib>BAI YONGPING ; QIAN JINGTING ; LIU GAOJUN ; LIU XINGYUAN ; CHENG FENG ; HE JINMEI ; BAI YAOZONG</creatorcontrib><description>The invention discloses a preparation method of a composite coated lithium ion battery polyethylene diaphragm. The aramid nanofiber, the polydopamine and the boehmite are used as a coating main body, and excellent thermal stability and rich polar groups are utilized, so that the problems of poor thermal stability and poor lyophilic property to electrolyte of the polyethylene diaphragm are solved. Meanwhile, PDA is adopted for modifying PE, and the problem that the surface energy of the PE diaphragm and the surface energy of a coating layer are not matched can be greatly solved. The thermal shrinkage rate, surface wettability, mechanical property and electrochemical property tests verify the influence of the modified diaphragm on physical properties and electrochemical properties. 本发明公开了一种复合涂覆锂离子电池聚乙烯隔膜的制备方法。以芳纶纳米纤维、聚多巴胺和勃姆石为涂覆主体,利用优异的热稳定性以及丰富的极性基团,改善聚乙烯隔膜热稳定性差、对电解质亲液性差的问题。同时采用PDA改性PE,可以大幅改善PE隔膜与涂覆层间表面能不匹配的问题。经热收缩率、表面润湿性、力学性能及电化学性能测试验证改性隔膜对物理性能和电化学性能的影响。</description><language>chi ; eng</language><subject>BASIC ELECTRIC ELEMENTS ; ELECTRICITY ; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY</subject><creationdate>2022</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=20221021&amp;DB=EPODOC&amp;CC=CN&amp;NR=115224438A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=20221021&amp;DB=EPODOC&amp;CC=CN&amp;NR=115224438A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>BAI YONGPING</creatorcontrib><creatorcontrib>QIAN JINGTING</creatorcontrib><creatorcontrib>LIU GAOJUN</creatorcontrib><creatorcontrib>LIU XINGYUAN</creatorcontrib><creatorcontrib>CHENG FENG</creatorcontrib><creatorcontrib>HE JINMEI</creatorcontrib><creatorcontrib>BAI YAOZONG</creatorcontrib><title>Preparation method of composite coated lithium ion battery polyethylene diaphragm</title><description>The invention discloses a preparation method of a composite coated lithium ion battery polyethylene diaphragm. The aramid nanofiber, the polydopamine and the boehmite are used as a coating main body, and excellent thermal stability and rich polar groups are utilized, so that the problems of poor thermal stability and poor lyophilic property to electrolyte of the polyethylene diaphragm are solved. Meanwhile, PDA is adopted for modifying PE, and the problem that the surface energy of the PE diaphragm and the surface energy of a coating layer are not matched can be greatly solved. The thermal shrinkage rate, surface wettability, mechanical property and electrochemical property tests verify the influence of the modified diaphragm on physical properties and electrochemical properties. 本发明公开了一种复合涂覆锂离子电池聚乙烯隔膜的制备方法。以芳纶纳米纤维、聚多巴胺和勃姆石为涂覆主体,利用优异的热稳定性以及丰富的极性基团,改善聚乙烯隔膜热稳定性差、对电解质亲液性差的问题。同时采用PDA改性PE,可以大幅改善PE隔膜与涂覆层间表面能不匹配的问题。经热收缩率、表面润湿性、力学性能及电化学性能测试验证改性隔膜对物理性能和电化学性能的影响。</description><subject>BASIC ELECTRIC ELEMENTS</subject><subject>ELECTRICITY</subject><subject>PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2022</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZAgMKEotSCxKLMnMz1PITS3JyE9RyE9TSM7PLcgvzixJBbISS1JTFHIySzIyS3MVQMqSEktKUosqFQrycyqBOipzUvNSFVIyEwsyihLTc3kYWNMSc4pTeaE0N4Oim2uIs4duakF-fGpxQWIyUHlJvLOfoaGpkZGJibGFozExagA7kjh-</recordid><startdate>20221021</startdate><enddate>20221021</enddate><creator>BAI YONGPING</creator><creator>QIAN JINGTING</creator><creator>LIU GAOJUN</creator><creator>LIU XINGYUAN</creator><creator>CHENG FENG</creator><creator>HE JINMEI</creator><creator>BAI YAOZONG</creator><scope>EVB</scope></search><sort><creationdate>20221021</creationdate><title>Preparation method of composite coated lithium ion battery polyethylene diaphragm</title><author>BAI YONGPING ; QIAN JINGTING ; LIU GAOJUN ; LIU XINGYUAN ; CHENG FENG ; HE JINMEI ; BAI YAOZONG</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_CN115224438A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>chi ; eng</language><creationdate>2022</creationdate><topic>BASIC ELECTRIC ELEMENTS</topic><topic>ELECTRICITY</topic><topic>PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY</topic><toplevel>online_resources</toplevel><creatorcontrib>BAI YONGPING</creatorcontrib><creatorcontrib>QIAN JINGTING</creatorcontrib><creatorcontrib>LIU GAOJUN</creatorcontrib><creatorcontrib>LIU XINGYUAN</creatorcontrib><creatorcontrib>CHENG FENG</creatorcontrib><creatorcontrib>HE JINMEI</creatorcontrib><creatorcontrib>BAI YAOZONG</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>BAI YONGPING</au><au>QIAN JINGTING</au><au>LIU GAOJUN</au><au>LIU XINGYUAN</au><au>CHENG FENG</au><au>HE JINMEI</au><au>BAI YAOZONG</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Preparation method of composite coated lithium ion battery polyethylene diaphragm</title><date>2022-10-21</date><risdate>2022</risdate><abstract>The invention discloses a preparation method of a composite coated lithium ion battery polyethylene diaphragm. The aramid nanofiber, the polydopamine and the boehmite are used as a coating main body, and excellent thermal stability and rich polar groups are utilized, so that the problems of poor thermal stability and poor lyophilic property to electrolyte of the polyethylene diaphragm are solved. Meanwhile, PDA is adopted for modifying PE, and the problem that the surface energy of the PE diaphragm and the surface energy of a coating layer are not matched can be greatly solved. The thermal shrinkage rate, surface wettability, mechanical property and electrochemical property tests verify the influence of the modified diaphragm on physical properties and electrochemical properties. 本发明公开了一种复合涂覆锂离子电池聚乙烯隔膜的制备方法。以芳纶纳米纤维、聚多巴胺和勃姆石为涂覆主体,利用优异的热稳定性以及丰富的极性基团,改善聚乙烯隔膜热稳定性差、对电解质亲液性差的问题。同时采用PDA改性PE,可以大幅改善PE隔膜与涂覆层间表面能不匹配的问题。经热收缩率、表面润湿性、力学性能及电化学性能测试验证改性隔膜对物理性能和电化学性能的影响。</abstract><oa>free_for_read</oa></addata></record>
fulltext fulltext_linktorsrc
identifier
ispartof
issn
language chi ; eng
recordid cdi_epo_espacenet_CN115224438A
source esp@cenet
subjects BASIC ELECTRIC ELEMENTS
ELECTRICITY
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
title Preparation method of composite coated lithium ion battery polyethylene diaphragm
url https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2024-12-24T22%3A24%3A10IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-epo_EVB&rft_val_fmt=info:ofi/fmt:kev:mtx:patent&rft.genre=patent&rft.au=BAI%20YONGPING&rft.date=2022-10-21&rft_id=info:doi/&rft_dat=%3Cepo_EVB%3ECN115224438A%3C/epo_EVB%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_id=info:pmid/&rfr_iscdi=true