CN103123989B - 一种用于钠硫电池正极的复合石墨毡 - Google Patents

一种用于钠硫电池正极的复合石墨毡 Download PDF

Info

Publication number
CN103123989B
CN103123989B CN201210537648.3A CN201210537648A CN103123989B CN 103123989 B CN103123989 B CN 103123989B CN 201210537648 A CN201210537648 A CN 201210537648A CN 103123989 B CN103123989 B CN 103123989B
Authority
CN
China
Prior art keywords
graphite felt
sodium
positive electrode
composite
glass fibre
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.)
Active
Application number
CN201210537648.3A
Other languages
English (en)
Other versions
CN103123989A (zh
Inventor
吴晓芳
韩金铎
刘宇
罗琳
陆志清
周日生
楼晓东
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
East China Power Test and Research Institute Co Ltd
Original Assignee
Shanghai Electric Sodium Sulfur Energy Storage Technology Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shanghai Electric Sodium Sulfur Energy Storage Technology Co Ltd filed Critical Shanghai Electric Sodium Sulfur Energy Storage Technology Co Ltd
Priority to CN201210537648.3A priority Critical patent/CN103123989B/zh
Publication of CN103123989A publication Critical patent/CN103123989A/zh
Application granted granted Critical
Publication of CN103123989B publication Critical patent/CN103123989B/zh
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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

Landscapes

  • Secondary Cells (AREA)

Abstract

本发明公开了一种用于钠硫电池正极的复合石墨毡，包括石墨毡，在所述石墨毡的上表面及内部针刺复合玻璃纤维。玻璃纤维对多硫化钠的润湿性极好，本发明在石墨毡表面及内部针刺玻璃纤维使得多硫化钠沿着玻璃纤维移动，增加正极石墨毡中多硫化钠的移动距离，防止形成绝缘层，保证了充电的平稳进行，大大提高了充电的回复特性，提高了充电性能。

Description

一种用于钠硫电池正极的复合石墨毡
技术领域
本发明属于钠硫电池领域，尤其涉及一种用于钠硫电池正极的复合石墨毡。
背景技术
钠硫电池通常采用表面平整的带有微孔的石墨毡作为正极，液态硫在毛细作用下沿石墨毡的纵向方向由下向上流动，在石墨毡表面呈梯度分布，在石墨毡与电解质接触的界面处进行电极反应。
在充电过程中电极反应会产生多硫化钠，由于石墨毡表面对多硫化钠的润湿性较差，使得大量多硫化钠堆积在石墨毡表面，形成一层绝缘层，大大影响了钠硫电池充电的稳定性和回复特性。
发明内容
本发明的目的，就是为了解决上述问题而提供了一种用于钠硫电池正极的、能防止绝缘层形成的复合石墨毡。
本发明的目的是这样实现的：
本发明的一种用于钠硫电池正极的复合石墨毡，包括石墨毡，在所述石墨毡的上表面针刺复合一玻璃纤维层，且该玻璃纤维层向下延伸出若干纵向深入所述石墨毡内部的玻璃纤维。
上述的一种用于钠硫电池正极的复合石墨毡，其中，所述玻璃纤维纵向深入所述石墨毡内部的深度为该石墨毡厚度的85-100％。
上述的一种用于钠硫电池正极的复合石墨毡，其中，所述玻璃纤维层的厚度为1mm。
上述的一种用于钠硫电池正极的复合石墨毡，其中，所述玻璃纤维层的玻璃纤维量与纵向深入所述石墨毡内部的玻璃纤维量相同。
上述的一种用于钠硫电池正极的复合石墨毡，其中，所述玻璃纤维的纤维直径为10-15μm。
玻璃纤维对多硫化钠的润湿性极好，本发明在石墨毡表面及内部针刺玻璃纤维使得多硫化钠沿着玻璃纤维移动，增加正极石墨毡中多硫化钠的移动距离，防止形成绝缘层，保证了充电的平稳进行，大大提高了充电的回复特性，提高了充电性能。
附图说明
图1是本发明的结构示意图。
具体实施方式
下面将结合附图，对本发明作进一步说明。
请参阅图1，图中示出了本发明用于钠硫电池正极的复合石墨毡。本发明复合石墨毡包括石墨毡2，在石墨毡2的上表面针刺复合一玻璃纤维层1，且该玻璃纤维层1向下延伸出若干纵向深入石墨毡2内部的玻璃纤维11，玻璃纤维11深入石墨毡2内部的深度为该石墨毡2厚度的85-100％，针刺的深度与表面覆盖率可以通过调节针刺频率实现。
上述复合石墨毡中，玻璃纤维原材料为厚度2mm的玻璃纤维针刺毡或者同等量的玻璃长纤维，纤维直径为10-15μm，针刺后，石墨毡2上表面的玻璃纤维层1厚度为1mm，其余全部纵向刺入石墨毡2内部。
玻璃纤维层1在石墨毡2的上表面作为高电阻层，该高电阻层减小了固体电解质管与正极石墨毡之间的临近接触面的电传导。
同时，玻璃纤维对多硫化钠的润湿性极好，针刺玻璃纤维使得多硫化钠沿着玻璃纤维移动，增加正极石墨毡中多硫化钠的移动距离，防止形成绝缘层，使得充电能够平稳进行，充电回复特性提高。
以上实施例仅供说明本发明之用，而非对本发明的限制，有关技术领域的技术人员，在不脱离本发明的精神和范围的情况下，还可以作出各种变换或变型，因此所有等同的技术方案也应该属于本发明的范畴，应由各权利要求所限定。

Claims (3)

1.一种用于钠硫电池正极的复合石墨毡，包括石墨毡，其特征在于，在所述石墨毡的上表面针刺复合一玻璃纤维层，且该玻璃纤维层向下延伸出若干纵向深入所述石墨毡内部的玻璃纤维；
所述玻璃纤维纵向深入所述石墨毡内部的深度为该石墨毡厚度的85-100％；
所述玻璃纤维层的厚度为1mm。
2.如权利要求1所述的一种用于钠硫电池正极的复合石墨毡，其特征在于，所述玻璃纤维层的玻璃纤维量与纵向深入所述石墨毡内部的玻璃纤维量相同。
3.如权利要求1或2所述的一种用于钠硫电池正极的复合石墨毡，其特征在于，所述玻璃纤维的纤维直径为10-15μm。
CN201210537648.3A 2012-12-12 2012-12-12 一种用于钠硫电池正极的复合石墨毡 Active CN103123989B (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201210537648.3A CN103123989B (zh) 2012-12-12 2012-12-12 一种用于钠硫电池正极的复合石墨毡

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201210537648.3A CN103123989B (zh) 2012-12-12 2012-12-12 一种用于钠硫电池正极的复合石墨毡

Publications (2)

Publication Number Publication Date
CN103123989A CN103123989A (zh) 2013-05-29
CN103123989B true CN103123989B (zh) 2015-05-20

Family

ID=48454915

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201210537648.3A Active CN103123989B (zh) 2012-12-12 2012-12-12 一种用于钠硫电池正极的复合石墨毡

Country Status (1)

Country Link
CN (1) CN103123989B (zh)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102227047B1 (ko) * 2013-10-30 2021-03-15 에스케이이노베이션 주식회사 기공 채널이 형성된 그라파이트 펠트를 포함하는 소듐 이차전지
KR20150051330A (ko) * 2013-11-01 2015-05-13 에스케이이노베이션 주식회사 홈이 형성된 그라파이트 펠트를 포함하는 소듐 이차전지

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1276919A (zh) * 1997-09-02 2000-12-13 Kvg技术股份有限公司 玻璃纤维隔板以及包括该隔板的电池
CN102142532A (zh) * 2011-01-27 2011-08-03 中国科学院上海硅酸盐研究所 一种钠硫电池用基于立体编织的碳硫复合电极
CN202352789U (zh) * 2011-12-16 2012-07-25 日本碍子株式会社 钠硫电池
CN202423502U (zh) * 2011-12-16 2012-09-05 日本碍子株式会社 钠硫电池及其模块电池
CN202423498U (zh) * 2011-12-16 2012-09-05 日本碍子株式会社 钠硫电池
CN202534748U (zh) * 2011-12-16 2012-11-14 日本碍子株式会社 钠硫电池
CN202996963U (zh) * 2012-12-12 2013-06-12 上海电气钠硫储能技术有限公司 一种用于钠硫电池正极的复合石墨毡

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61190869A (ja) * 1985-02-19 1986-08-25 Yuasa Battery Co Ltd ナトリウム−硫黄電池

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1276919A (zh) * 1997-09-02 2000-12-13 Kvg技术股份有限公司 玻璃纤维隔板以及包括该隔板的电池
CN102142532A (zh) * 2011-01-27 2011-08-03 中国科学院上海硅酸盐研究所 一种钠硫电池用基于立体编织的碳硫复合电极
CN202352789U (zh) * 2011-12-16 2012-07-25 日本碍子株式会社 钠硫电池
CN202423502U (zh) * 2011-12-16 2012-09-05 日本碍子株式会社 钠硫电池及其模块电池
CN202423498U (zh) * 2011-12-16 2012-09-05 日本碍子株式会社 钠硫电池
CN202534748U (zh) * 2011-12-16 2012-11-14 日本碍子株式会社 钠硫电池
CN202996963U (zh) * 2012-12-12 2013-06-12 上海电气钠硫储能技术有限公司 一种用于钠硫电池正极的复合石墨毡

Also Published As

Publication number Publication date
CN103123989A (zh) 2013-05-29

Similar Documents

Publication Publication Date Title
Cheng et al. Lithium Host: Advanced architecture components for lithium metal anode
Liu et al. Highly flexible freestanding porous carbon nanofibers for electrodes materials of high-performance all-carbon supercapacitors
Zhang et al. Sulfur Encapsulated in Graphitic Carbon Nanocages for High-Rate and Long-Cycle Lithium-Sulfur Batteries.
Luo et al. Modified chestnut-like structure silicon carbon composite as anode material for lithium-ion batteries
Wang et al. Solid-state fabrication of SnS2/C nanospheres for high-performance sodium ion battery anode
Huang et al. An emerging energy storage system: advanced Na–Se batteries
Chung et al. High-performance Li–S batteries with an ultra-lightweight MWCNT-coated separator
Zhi et al. Nanostructured carbon–metal oxide composite electrodes for supercapacitors: a review
Xu et al. Rational design of wood‐structured thick electrode for electrochemical energy storage
Ji et al. Assembly of carbon-SnO2 core-sheath composite nanofibers for superior lithium storage.
Cao et al. Commercialization‐driven electrodes design for lithium batteries: basic guidance, opportunities, and perspectives
Pan et al. Ultrathin and strong electrospun porous fiber separator
Lyu et al. Carbon/lithium composite anode for advanced lithium metal batteries: design, progress, in situ characterization, and perspectives
Liu et al. Recent development in lithium metal anodes of liquid-state rechargeable batteries
Zhang et al. Direct ink writing of moldable electrochemical energy storage devices: ongoing progress, challenges, and prospects
WO2013130983A3 (en) Impregnated sintered solid state composite electrode, solid state battery, and methods of preparation
WO2010081066A8 (en) Separator filled with electrolyte
AP et al. Barium titanate-based porous ceramic flexible membrane as a separator for room-temperature sodium-ion battery.
Basha et al. Construction building materials as a potential for structural supercapacitor applications
CN103123989B (zh) 一种用于钠硫电池正极的复合石墨毡
CN102142532B (zh) 一种钠硫电池用基于立体编织的碳硫复合电极
Guan et al. Advances in the emerging gradient designs of Li metal hosts
Cheng et al. Molten lithium-filled three-dimensional hollow carbon tube mats for stable lithium metal anodes
ATE521098T1 (de) Verfahren zur herstellung einer brennstoffzelle
Shi et al. Direct-chemical vapor deposition-enabled graphene for emerging energy storage: versatility, essentiality, and possibility

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20200901

Address after: 200437 No. 171, Handan Road, Shanghai, Hongkou District

Patentee after: EAST CHINA ELECTRIC POWER RESEARCH INSTITUTE Co.,Ltd.

Address before: 201815 Shanghai Jiading District City Jia Zhu Road No. 1997

Patentee before: SHANGHAI ELECTRIC SODIUM SULFUR ENERGY STORAGE TECHNOLOGY Co.,Ltd.