KR100458582B1 - Electrode for lithium sulfur batteries comprising curable binder and lithium sulfur batteries comprising the same - Google Patents

Electrode for lithium sulfur batteries comprising curable binder and lithium sulfur batteries comprising the same Download PDF

Info

Publication number
KR100458582B1
KR100458582B1 KR20020043249A KR20020043249A KR100458582B1 KR 100458582 B1 KR100458582 B1 KR 100458582B1 KR 20020043249 A KR20020043249 A KR 20020043249A KR 20020043249 A KR20020043249 A KR 20020043249A KR 100458582 B1 KR100458582 B1 KR 100458582B1
Authority
KR
South Korea
Prior art keywords
lithium sulfur
sulfur battery
binder
based
electrode plate
Prior art date
Application number
KR20020043249A
Other languages
Korean (ko)
Other versions
KR20040009328A (en
Inventor
김석
정용주
한지성
김잔디
Original Assignee
삼성에스디아이 주식회사
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 삼성에스디아이 주식회사 filed Critical 삼성에스디아이 주식회사
Priority to KR20020043249A priority Critical patent/KR100458582B1/en
Publication of KR20040009328A publication Critical patent/KR20040009328A/en
Application granted granted Critical
Publication of KR100458582B1 publication Critical patent/KR100458582B1/en

Links

Classifications

    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage
    • Y02E60/12Battery technologies with an indirect contribution to GHG emissions mitigation

Abstract

PURPOSE: An electrode plate for a lithium sulfur battery, its preparation method and a lithium sulfur battery containing the electrode plate are provided, to improve the energy density and the lifetime characteristic of a lithium sulfur battery by employing a crosslinked binder having excellent chemical resistance and binding force. CONSTITUTION: The electrode plate comprises the polymer binder which is insoluble in an electrolyte solution and is crosslinked by the heat or the irradiation of an UV ray or an electric beam. Preferably the crosslinked polymer binder is the poly(vinyl pyrrolidone) represented by the formula 1, wherein n is a degree of polymerization. Preferably a crosslinking initiator is added when the polymer binder is crosslinked, and the initiator is the 4,4'-diazidostilbene-2,2'-disulfonic acid sodium salt tetrahydrate represented by the formula 2, peroxide or their mixture. Preferably the degree of swelling of the binder is 20 % or less.

Description

가교 바인더를 포함하는 리튬 설퍼 전지용 극판 및 이 극판을 포함하는 리튬 설퍼 전지{ELECTRODE FOR LITHIUM SULFUR BATTERIES COMPRISING CURABLE BINDER AND LITHIUM SULFUR BATTERIES COMPRISING THE SAME} Lithium containing lithium sulfur battery electrode plate and the electrode plate comprising a cross-linked binder sulfur battery {ELECTRODE FOR LITHIUM SULFUR BATTERIES COMPRISING CURABLE BINDER AND LITHIUM SULFUR BATTERIES COMPRISING THE SAME}

[산업상 이용 분야] [Industrial Field of Application]

본 발명은 가교 바인더를 포함하는 리튬 설퍼 전지용 극판 및 이 극판을 포함하는 리튬 설퍼 전지에 관한 것으로서, 더욱 상세하게는 전해액에 불용성이고, 열에 의하여 또는 자외선 또는 전자빔 조사에 의하여 가교된 고분자 바인더를 포함하는 리튬 설퍼 전지용 극판 및 이 극판을 포함하는 리튬 설퍼 전지에 관한 것이다. The present invention relates to a lithium sulfur battery comprising a lithium sulfur battery electrode plate and the electrode plate comprising a cross-linked binder, and more particularly, is insoluble in the electrolyte, comprising a polymeric binder cross-linking or by UV or electron beam irradiation by heat lithium sulfur battery relates to a plate, and a lithium sulfur battery comprising the electrode plate.

[종래 기술] [Prior art]

리튬 설퍼 전지는 SS 결합(Sulfur-Sulfur linkage)을 가지는 황계 물질을 양극 활물질로 사용하고, 리튬과 같은 알칼리 금속, 또는 리튬 이온 등과 같은 금속 이온의 삽입/탈삽입이 일어나는 탄소계 물질을 음극 활물질로 사용하는 이차 전지이다. Lithium sulfur batteries is a SS bond (Sulfur-Sulfur linkage) for having used a sulfur-based material as a cathode active material and an alkali metal such as lithium, or the insertion of metal ions, such as Li-ion / de-insertion is taking place carbon-based material for the negative electrode active material a secondary cell to be used.

리튬 설퍼 전지는 환원 반응시(방전시) SS 결합이 끊어지면서 S의 산화수가감소하고, 산화 반응시(충전시) S의 산화수가 증가하면서 SS 결합이 다시 형성되는 산화-환원 반응을 이용하여 전기전 에너지를 저장 및 생성한다. Lithium sulfur batteries is reduction time (during discharge) SS bonds are broken As reduces the oxidation number of S, and the oxide and the oxidation state during the oxidation reaction (when fully charged) S increases SS bonds are formed back-electric, using a reduction reaction store and generate energy around.

현재 리튬 설퍼 전지 제조시 바인더로는 폴리비닐리덴 플루오라이드(PVdF), 폴리테트라플루오로에틸렌(PTFE) 등이 사용되고, 활물질, 도전제 및 바인더를 NMP 등의 유기용제에 녹여 슬러리를 제조한 다음 이 슬러리를 극판 위에 코팅하고 건조하는 방법으로 리튬 설퍼 전지의 극판을 제조하고 있다. The one with the current lithium sulfur during manufacture of battery binders manufacturing a polyvinylidene fluoride (PVdF), is used and the like polytetrafluoroethylene (PTFE), a slurry to melt the active material, conductive agent and a binder in an organic solvent such as NMP, and then and manufacturing an electrode plate of a lithium-sulfur battery in a manner that the slurry coated and dried on the plates.

상기와 같은 극판의 제조 방법은 슬러리를 극판 위에 코팅한 다음 건조 공정을 거쳐야 하는 번거로움이 있고, 또한 건조 후 바인더의 팽윤도가 커져 활물질 슬러리의 금속극판에 대한 접착력이 저하되고 제조된 극판을 포함하는 리튬 설퍼 전지의 단위에너지 밀도가 낮아지고 수명특성이 저하된다는 문제점이 있었다. Plate production method of as described above by coating the slurry on the plate, and then there is a hassle to go through a drying step, and also including a plate adhesion strength is reduced and the manufacturing of the metal electrode plate of the electrode active material slurry increases the degree of swelling of the dried binder the unit of energy density of the lithium-sulfur battery is lowered there is a problem in that the life characteristics deteriorate.

본 발명은 상술한 문제점을 해결하기 위한 것으로서, 본 발명의 목적은 내화학성 및 결착력이 우수한 가교 바인더를 포함하는 리튬 설퍼 전지용 극판을 제공하는 것이다. The present invention is to provide an object of the present invention to provide chemical resistance and a lithium sulfur battery plate to gyeolchakryeok comprises a superior cross-linking the binder serves to solve the above problems.

본 발명의 목적은 또한, 상기 리튬 설퍼 전지용 극판을 포함하는 에너지밀도가 높고 수명 특성이 우수한 리튬 설퍼 전지를 제공하는 것이다. An object of the present invention also to the energy density of the lithium sulfur battery comprising plates high provide excellent life property of lithium sulfur battery.

본 발명의 목적은 또한, 상기 리튬 설퍼 전지용 극판의 제조 방법을 제공하는 것이다. An object of the present invention is also to provide a method for producing the lithium sulfur battery plates.

상기 목적을 달성하기 위하여, 본 발명은 전해액에 불용성이고, 열에 의하여또는 자외선 또는 전자빔 조사에 의하여 가교된 고분자 바인더를 포함하는 리튬 설퍼 전지용 극판을 제공한다. In order to achieve the above object, the present invention provides a lithium sulfur battery electrode plates comprising the water-insoluble, and cross-linked by electron beam irradiation or ultraviolet light or by heat the polymer binder in the electrolyte.

본 발명은 또한, 상기 리튬 설퍼 전지용 극판을 포함하는 리튬 설퍼 전지를 제공한다. The present invention also provides a lithium sulfur battery comprising the lithium sulfur battery plates.

본 발명은 또한, (a) 열에 의하여 또는 자외선 또는 전자빔 조사에 의하여 가교 가능한 고분자 바인더; The invention also, (a) heat-crosslinkable polymeric binder or by UV or by electron beam irradiation; 도전제; A conductive agent; 및 활물질을 유기 용매에 혼합하여 활물질 슬러리를 제조하는 단계; And an active material comprising: mixing the prepared active material slurry in an organic solvent; (b) 상기 제조된 활물질 슬러리를 전류 집전체 위에 코팅하는 단계; (B) coating the above-prepared active material slurry on a current collector; 및 (c) 상기 활물질 슬러리가 코팅된 전류 집전체를 열에 의하여 또는 자외선 또는 전자빔 조사하는 단계를 포함하는 가교된 고분자 바인더를 포함하는 리튬 설퍼 전지용 극판의 제조 방법을 제공한다. And (c) provides a method for preparing a lithium sulfur battery electrode plate comprising a cross-linked polymeric binder comprises the step of ultraviolet or electron beam irradiation, or by the entirety of the active material slurry coated current collector with heat.

이하 본 발명을 더욱 상세하게 설명한다. Will now be described in detail the invention.

리튬 설퍼 전지용 바인더로 사용되기 위한 조건으로는 바인더가 전해액에 용해되지 않아야 하나 활물질 슬러리 제조시 아세토니트릴 등의 용제에는 용해되어야 하고, 제조된 활물질의 페이스트가 금속극판에 대하여 우수한 결착력을 가져야 한다. The condition for use as a lithium sulfur battery, the binder is a binder should be soluble in the electrolyte solution and to be soluble in solvents such as acetonitrile active material slurry during manufacture, should have a high gyeolchakryeok with respect to the active material paste is prepared metal plates.

본 발명의 리튬 설퍼 전지용 바인더는 전해액에 불용성이고, 열에 의하여 또는 자외선 또는 전자빔 조사로 가교된 고분자인 것을 특징으로 한다. Lithium sulfur battery binder of the invention is characterized in that it is insoluble, by heat or UV or electron beam irradiation to crosslink the polymer in the electrolyte.

본 발명의 가교된 고분자로는 비수계 및 불소계 고분자가 모두 사용가능하다. A cross-linked polymer according to the present invention can be used for both the non-aqueous liquid, and the fluorinated polymer. 비수계 고분자로는 에틸렌프로필렌디엔터폴리머(EPDM), 아세토니트릴부타디엔 (AB), 폴리이소프렌, 폴리부타디엔, 폴리비닐피롤리돈(PVP), 폴리아크릴레이트계,폴리우레탄계, 에폭시 수지계, 폴리에스터계, 실리콘 수지계, 폴리이미드계, 폴리아미드계 등이 바람직하게 사용될 수 있고, 불소계 고분자로는 폴리비닐리덴플루오라이드(PVDF), 폴리테트라에틸렌플루오라이드(PTEF), 기타 여러가지 불소계 공중합체 고분자 등이 특히 바람직하게 사용될 수 있다. A non-aqueous polymer is an ethylene propylene di-enter the polymer (EPDM), acetonitrile-butadiene (AB), polyisoprene, polybutadiene, polyvinyl pyrrolidone (PVP), poly acrylate based, polyurethane-based, epoxy resin-based, polyester-based , silicone resin, polyimide, polyamide, etc. can be preferably used, the fluorinated polymer include polyvinylidene fluoride (PVDF), polytetraethylene fluoride (PTEF), many other fluorine-based copolymer polymer, such as particularly It can be preferably used.

이중에서 하기 화학식 1의 폴리비닐피롤리돈(Polyvinylpirrolidone)가 가장 바람직하다. To double in the most preferred polyvinylpyrrolidone (Polyvinylpirrolidone) of the formula (I).

[화학식 1] Formula 1

상기 화학식에서, In the above formulas,

n은 중합도를 의미한다. n is the degree of polymerization.

상기 본 발명의 가교 가능한 고분자를 활물질 슬러리에 첨가하고 전류집전체를 코팅한 다음 열을 가하든지 자외선 또는 전자빔을 조사하면 가교 가능한 고분자가 직접 다른 고분자와 가교반응하여 경화되기도 하고 고분자 사이에 반데르 발스 인력이 작용하여 고분자가 경화되기도 한다. Addition of the crosslinkable polymer of the present invention the active material slurry, and irradiated with a current collector of the total coating, and then either inflicting heat ultraviolet rays or electron beam-crosslinkable polymer is also cured by reaction directly different polymers and cross-linking and half between the polymer der Waals force acts will be also a polymer is cured.

열에 의한 가교시 가열 온도는 50 내지 110 ℃가 바람직하다. Cross-linking on heating temperature due to heat is 50 to 110 ℃ is preferred. 가교 온도가 50 ℃ 미만이면 가교가 원활히 진행되지 않아 바람직하지 않고, 가교 온도가 110 ℃를 초과하면 활물질 중 황이 녹아버린다는 문제점이 있다. If the crosslinking temperature is lower than 50 ℃ undesirable crosslinking does not proceed smoothly, when the cross-linking temperature is higher than 110 ℃ sulfur melt away of the active material has a problem.

또한, 자외선 조사에 의한 가교시 파장이 350 내지 380 ㎚가 바람직하고, 자외선의 에너지 밀도는 0.2 내지 0.5 mW/㎠가 바람직하다. In addition, the cross-linking when the wavelength of the ultraviolet irradiation, and the 350 to 380 ㎚ Preferably, the energy density of the ultraviolet rays is preferably from 0.2 to 0.5 mW / ㎠.

자외선이나 전자빔에 의한 조사로 가교 바인더를 형성하여 제조되는 본 발명의 리튬 설퍼 전지용 극판은 상기 가교 고분자 바인더 이외에 가교 반응 개시제를 더욱 포함할 수 있다. UV or lithium sulfur battery electrode plate of the present invention is prepared by forming a crosslinked binder upon irradiation with an electron beam can further include a cross-linking reaction initiator, in addition to the crosslinked polymer binder. 상기 가교 반응 개시제로는 하기 하학식 2의 4,4'-디아지도스틸벤-2.2'-디설포닉 산 소디움 솔트 테트라하이드레이트(4.4'-Diazidostilbene-2.2'-disulfonic acid sodium salt tetra hydrate, DAS), 퍼옥사이드 등이 바람직하게 사용될 수 있다. The crosslinking reaction initiator to the learned and the second map 4,4'-stilbene disulfonic -2.2'- sulphonic acid sodium salt tetrahydrate (4.4'-Diazidostilbene-2.2'-disulfonic acid sodium salt tetra hydrate, DAS), the peroxide may be preferably used.

[화학식 2] [Formula 2]

상기 화학식 1의 폴리비닐피롤리돈에 반응 개시제로 상기 화학식 2의 4,4'-디아지도스틸벤-2.2'-디설포닉 산 소디움 솔트 테트라하이드레이트를 첨가하면 4,4'-디아지도스틸벤-2.2'-디설포닉 산 소디움 솔트 테트라하이드 화합물 중의 아자이드 성분이 폴리비닐피롤리돈의 가교 반응을 유도한다. The addition of the 4,4'-disulfonic -2.2'- map stilbene sulphonic acid sodium salt tetrahydrate of the formula (2) disclosed in the reaction of polyvinyl pyrrolidone of the formula (1) zero-4,4'-stilbene map - the azide component in 2.2'- disulfonic sulphonic acid sodium salt tetra-hydroxyl compound to induce the cross-linking reaction of the polyvinyl pyrrolidone.

또한, 본 발명의 가교된 바인더가 가교 반응을 거쳐 경화될 경우 팽윤도가 20% 이하가 바람직하다. In addition, the degree of swelling is not more than 20% is preferred if the cross-linking binders of the present invention to be cured through a crosslinking reaction. 바인더의 팽윤도가 20%를 초과하면 극판의 단위 면적당 에너지 밀도가 저하되고 수명 특성이 나빠진다는 문제점이 있다. If the degree of swelling of the binder exceeds 20%, there is a problem that lowering the energy density per unit area of ​​the electrode plates and deteriorates the life characteristics.

본 발명은 또한 상기 가교 바인더를 포함하는 리튬 설퍼 전지용 극판을 포함하는 리튬 설퍼 전지를 제공한다. The invention also provides a lithium sulfur battery comprising a lithium sulfur battery electrode plates comprising the cross-linked binder.

본 발명은 또한, 상기 리튬 설퍼 전지용 극판의 제조 방법을 제공한다. The present invention also provides a method for producing the lithium sulfur battery plates.

먼저 열에 의하여 또는 자외선 또는 전자빔 조사에 의하여 가교 가능한 고분자 바인더; First heat-crosslinkable polymeric binder or by UV or by electron beam irradiation; 도전제; A conductive agent; 및 활물질을 유기 용매에 혼합하여 활물질 슬러리를 제조한다((a) 단계) And an active material prepared by mixing an active material slurry in an organic solvent ((a) step)

그 다음 상기 제조된 활물질 슬러리를 전류 집전체 위에 코팅한다((b) 단계). Then the above prepared active material slurry is coated on a current collector ((b) step).

그 다음 상기 활물질 슬러리가 코팅된 전류 집전체를 열에 의하여 또는 자외선 또는 전자빔 조사하여 가교 가능한 고분자를 가교 시킨다((c) 단계). Then the active material slurry is then cross-linked to the current collector by the full heat or UV or by electron beam irradiation crosslinkable polymer coating ((c) step).

이상 살펴본 바와 같이, 본 발명의 내화학성 및 결착력이 우수한 가교 바인더를 포함하는 극판을 포함하는 리튬 설퍼 전지는 에너지밀도가 높고 수명 특성이 우수하다. As seen from the foregoing, a lithium sulfur battery comprising an electrode plate including the chemical resistance and the excellent gyeolchakryeok crosslinking binder in the present invention has a high energy density and excellent cycle life characteristics.

이하 본 발명의 바람직한 실시예 및 비교예를 기재한다. It describes the following preferred examples and comparative examples of the present invention. 하기 실시예 및 비교예는 본 발명을 보다 명확히 표현하기 위한 목적으로 기재될 뿐 본 발명의 내용이 하기 실시예 및 비교예에 한정되는 것은 아니다. The following Examples and Comparative Example is not limited to only examples and comparative examples, the content of the present invention to be described for the purpose of clearly expressed than the present invention.

(실시예 1) (Example 1)

황 원소 70 중량%, 도전제로 케첸 블랙 12 중량% 및 바인더로 폴리비닐피롤리돈(PVP) 15 중량% 및 광개시로 4,4'-디아지도스틸벤-2.2'-디설포닉 산 소디움 솔트 테트라하이드레이트(DAS) 3 중량%를 아세토니트릴 용매에서 혼합하여 리튬-황 전지용 양극 활물질 슬러리를 제조하였다. To elemental sulfur 70% by weight, 12% by weight of ketjen black conductive agent and a binder, polyvinyl pyrrolidone (PVP) as a 15% by weight, and a photo initiator 4,4'-map stilbene disulfonic -2.2'- sulphonic acid sodium salt tetra hydrate (DAS) a mixture of 3% by weight in an acetonitrile solvent and a lithium-sulfur battery, the positive electrode active material slurry was prepared.

이 슬러리를 탄소-코팅된 알루미늄 전류 집전체에 코팅하고, 슬러리가 코팅된 전류 집전체를 자외선 파장이 350 ㎚이고, 자외선 에너지 밀도가 0.5 mW/㎠인 자외선을 30분 동안 조사하여 25 ×50 ㎟ 크기를 가진, 2 mAh/cm 2 의 양극판을 제조하였다. The slurry of carbon-coating the whole coated aluminum current collector, and is a total of the slurry coated current collector with ultraviolet rays having a wavelength of 350 ㎚, the UV energy density is irradiated for 30 minutes with UV light of 0.5 mW / ㎠ 25 × 50 ㎟ having a size to prepare a positive electrode plate of 2 mAh / cm 2.

양극판, 진공 건조된 세퍼레이터 및 음극으로 리튬 전극을 차례로 얹은 다음 탄소 코팅된 알루미늄으로 제조된 캔에 삽입하였다. A positive electrode plate, topped with a vacuum lithium electrode in a dry separator and the negative electrode, and then was inserted into a made of a carbon-coated aluminum can. 1.0 M LiSO 3 CF 3 가 용해된 디메톡시에탄/디옥솔란을 80:20의 부피비로 혼합한 전해액을 상기 캔에 주입하였다. An electrolyte mixture of 1.0 M LiSO 3 CF 3 are dissolved in dimethoxyethane / dioxolane in a volume ratio of 80: 20 was injected into the can. 전해액 주입 후 실링하여 파우치형 테스트 셀을 조립하였다. After sealing the electrolyte injection was assembled pouch-shaped test cell.

(실시예 2) (Example 2)

자외선 조사 대신 전자빔 조사를 한 것을 제외하고는 상기 실시예 1과 동일하게 실시하였다. Except that the electron beam irradiation was performed instead of the ultraviolet irradiation in the same manner as in Example 1.

(실시예 3) (Example 3)

자외선 조사 대신 100 ℃에서 1시간 동안 건조한 것을 제외하고는 상기 실시예 1과 동일하게 실시하였다. Except that the dried for 1 hour at 100 ℃ place of ultraviolet ray irradiation was performed in the same manner as in Example 1.

본 발명의 내화학성 및 결착력이 우수한 가교 바인더를 포함하는 극판을 포함하는 리튬 설퍼 전지는 에너지밀도가 높고 수명 특성이 우수하다. Lithium sulfur battery comprising an electrode plate including the chemical resistance and the excellent gyeolchakryeok crosslinking binder in the present invention is excellent in high energy density and cycle life characteristics.

Claims (7)

  1. a) 황 원소, a) elemental sulfur,
    b) 하기 하학식 2의 4,4'-디아지도스틸-2.2'-디설포닉 산 소디움 솔트 테트라하이드레이트, 퍼옥사이드 또는 이들의 혼합물 중에서 선택되는 가교 반응 개시제, 및 b) a map of learning and 4,4'-disulfonic sulphonic acid sodium salt 2 steel -2.2'- tetrahydrate, peroxide or cross-linking initiator is selected from the mixtures thereof, and
    [화학식 2] [Formula 2]
    c) 에틸렌프로필렌디엔터폴리머(EPDM), 아세토니트릴부타디엔 (AB), 폴리이소프렌, 폴리부타디엔, 폴리비닐피롤리돈(PVP), 폴리아크릴레이트계, 폴리우레탄계, 에폭시 수지계, 폴리에스터계, 실리콘 수지계, 폴리이미드계, 폴리아미드계, 폴리비닐리덴플루오라이드(PVDF), 또는 폴리테트라에틸렌플루오라이드(PTEF) 중에서 선택되는 고분자 바인더 c) ethylene propylene di-enter the polymer (EPDM), acetonitrile-butadiene (AB), polyisoprene, polybutadiene, polyvinyl pyrrolidone (PVP), poly acrylate based, polyurethane-based, epoxy resin-based, polyester-based, silicone resin , polyimide, polyamide, polyvinylidene fluoride (PVDF), or poly-polymer selected from the group consisting of tetraethylene fluoride (PTEF) binder
    를 포함하며, 상기 고분자 바인더는 전해액에 불용성이고, 열에 의하여 또는 자외선 조사에 의하여 가교된 것인 리튬 설퍼 전지용 극판. And including the said polymeric binder is insoluble in the electrolytic solution, the heat that the lithium sulfur battery electrode plate or by cross-linking by ultraviolet ray irradiation.
  2. 제1항에 있어서, 상기 가교된 고분자 바인더는 하기 화학식 1의 폴리비닐피롤리돈(Polyvinylpirrolidone)인 리튬 설퍼 전지용 극판: The method of claim 1, wherein the crosslinked polymer binder to a lithium sulfur battery, polyvinylpyrrolidone (Polyvinylpirrolidone) of formula (1) plates:
    [화학식 1] Formula 1
    상기 화학식에서, In the above formulas,
    n은 중합도를 의미한다. n is the degree of polymerization.
  3. 삭제 delete
  4. 삭제 delete
  5. 제1항에 있어서, 상기 바인더의 팽윤도가 20% 이하인 리튬 설퍼 전지용 극판. The method of claim 1, wherein the degree of swelling of the binder of 20% or less lithium sulfur battery plates.
  6. 제1항, 제2항, 또는 제5항 중 어느 한 항 기재의 리튬 설퍼 전지용 극판을 포함하는 리튬 설퍼 전지. Of claim 1, claim 2, or claim 5, lithium sulfur battery comprising a lithium sulfur battery electrode plate of any one of the preceding description of the claims.
  7. (a) i) 에틸렌프로필렌디엔터폴리머(EPDM), 아세토니트릴부타디엔 (AB), 폴리이소프렌, 폴리부타디엔, 폴리비닐피롤리돈(PVP), 폴리아크릴레이트계, 폴리우레탄계, 에폭시 수지계, 폴리에스터계, 실리콘 수지계, 폴리이미드계, 폴리아미드계, 폴리비닐리덴플루오라이드(PVDF), 또는 폴리테트라에틸렌플루오라이드(PTEF) 중에서 선택되는 고분자 바인더, (A) i) ethylene propylene di-enter the polymer (EPDM), acetonitrile-butadiene (AB), polyisoprene, polybutadiene, polyvinyl pyrrolidone (PVP), poly acrylate based, polyurethane-based, epoxy resin-based, polyester-based , silicone resin, polyimide, polyamide, polyvinylidene fluoride (PVDF), or poly polymeric binder selected from the group consisting of tetraethylene fluoride (PTEF),
    ii) 황 원소, ii) elemental sulfur,
    iii) 하기 하학식 2의 4,4'-디아지도스틸-2.2'-디설포닉 산 소디움 솔트 테트라하이드레이트, 퍼옥사이드 또는 이들의 혼합물 중에서 선택되는 가교 반응 개시제, 및 iii) and to the learned two-4,4'-disulfonic map steel -2.2'- sulphonic acid sodium salt tetrahydrate, peroxide or cross-linking initiator is selected from the mixtures thereof, and
    [화학식 2] [Formula 2]
    iv) 도전제 iv) conducting agent
    를 유기용매에 혼합하여 활물질 슬러리를 제조하는 단계; A mixture of an organic solvent to prepare an active material slurry;
    (b) 상기 제조된 활물질 슬러리를 전류 집전체 위에 코팅하는 단계; (B) coating the above-prepared active material slurry on a current collector; And
    (c) 상기 활물질 슬러리가 코팅된 전류 집전체를 열에 의하여 또는 자외선 조사하는 단계 (C) the step of ultraviolet ray irradiation or by the entirety of the active material slurry coated current collector column
    를 포함하는 가교된 고분자 바인더를 포함하는 리튬 설퍼 전지용 극판의 제조 방법. Method for manufacturing a lithium sulfur battery electrode plate comprising a cross-linked polymeric binder comprising at.
KR20020043249A 2002-07-23 2002-07-23 Electrode for lithium sulfur batteries comprising curable binder and lithium sulfur batteries comprising the same KR100458582B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR20020043249A KR100458582B1 (en) 2002-07-23 2002-07-23 Electrode for lithium sulfur batteries comprising curable binder and lithium sulfur batteries comprising the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR20020043249A KR100458582B1 (en) 2002-07-23 2002-07-23 Electrode for lithium sulfur batteries comprising curable binder and lithium sulfur batteries comprising the same

Publications (2)

Publication Number Publication Date
KR20040009328A KR20040009328A (en) 2004-01-31
KR100458582B1 true KR100458582B1 (en) 2004-12-03

Family

ID=37318260

Family Applications (1)

Application Number Title Priority Date Filing Date
KR20020043249A KR100458582B1 (en) 2002-07-23 2002-07-23 Electrode for lithium sulfur batteries comprising curable binder and lithium sulfur batteries comprising the same

Country Status (1)

Country Link
KR (1) KR100458582B1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100863733B1 (en) 2006-05-15 2008-10-16 주식회사 엘지화학 Electrode Material Containing Polyacrylic Acid Physically Mixed with Polyurethane as Binder and Lithium Secondary Battery Employed with the Same
US9083047B2 (en) 2012-04-02 2015-07-14 Samsung Sdi Co., Ltd. Binder composition for rechargeable battery, rechargeable battery employing the same and method of producing electrode for rechargeable battery
KR20180071732A (en) * 2016-12-20 2018-06-28 한국과학기술원 Sulfur cathode for lithium-sulfur battery of adjusting cross-link and manufacturing method thereof

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100740677B1 (en) * 2004-12-31 2007-07-19 삼성정밀화학 주식회사 Conducting Polyvinylcarbazole Nano Composites and Preparation Method of They
WO2006109948A1 (en) * 2005-04-12 2006-10-19 Lg Chem, Ltd. Lithium secondary battery containing silicon-based or tin-based anode active material
WO2014204214A1 (en) * 2013-06-18 2014-12-24 주식회사 엘지화학 Binder solution for anode, active material slurry for anode comprising same, anode using said active material slurry, and electrochemical device comprising same
CN105308780B (en) 2013-06-18 2018-09-11 株式会社Lg化学 A kind of cathode and the electrochemical device containing the cathode

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100863733B1 (en) 2006-05-15 2008-10-16 주식회사 엘지화학 Electrode Material Containing Polyacrylic Acid Physically Mixed with Polyurethane as Binder and Lithium Secondary Battery Employed with the Same
US9083047B2 (en) 2012-04-02 2015-07-14 Samsung Sdi Co., Ltd. Binder composition for rechargeable battery, rechargeable battery employing the same and method of producing electrode for rechargeable battery
KR20180071732A (en) * 2016-12-20 2018-06-28 한국과학기술원 Sulfur cathode for lithium-sulfur battery of adjusting cross-link and manufacturing method thereof
KR102039211B1 (en) * 2016-12-20 2019-10-31 한국과학기술원 Sulfur cathode for lithium-sulfur battery of adjusting cross-link and manufacturing method thereof

Also Published As

Publication number Publication date
KR20040009328A (en) 2004-01-31

Similar Documents

Publication Publication Date Title
CN101989651B (en) Method for preparing cross-linked ceramic-coated separator containing ionic polymer, ceramic-coated separator prepared by the method, and lithium secondary battery using the same
US5962170A (en) Electrochemical cell
US7459235B2 (en) Anode composition for lithium battery, and anode and lithium battery using the same
US20050175903A1 (en) Positive electrode having polymer film and lithium-sulfur battery employing the positive electrode
KR100456647B1 (en) Lithium ion polymer battery
CN1171346C (en) Lithium secondary cell
US7897674B2 (en) Polymer electrolyte with high stability, its use in electrochemical systems
US5565284A (en) Lithium secondary cell
CN1205688C (en) The lithium secondary battery
CN1316670C (en) Lithium polymer cell and method for producing same
KR101502897B1 (en) Composite for anode active material, anode materials and lithium battery using the same
US7582388B2 (en) Non-aqueous solvent secondary battery
KR100742957B1 (en) Safety-improved electrode by introducing crosslinkable polymer and electrochemical device comprising the same
US6235433B1 (en) High molecular gel electrolyte and secondary battery using the same
KR100425585B1 (en) Lithium polymer secondary battery having crosslinked polymer protective thin film and method for manufacturing the same
JP3949686B2 (en) Metal alloy negative electrode for lithium secondary battery, method for producing the same, and battery including the same
JPH09231977A (en) Electrode and its manufacture
JP2001525112A (en) A method of manufacturing an electro-chemical battery
JP3872768B2 (en) Lithium secondary battery in which decomposition reaction of electrolyte is suppressed and method for manufacturing the same
JP2000353546A (en) Cell having passivation electrode and manufacture thereof
US9362592B2 (en) Method of preparing gel polymer electrolyte secondary battery and gel polymer electrolyte secondary battery
US20010023041A1 (en) Gel electrolyte precursor and chemical battery
JP3784494B2 (en) Binder for battery, binder solution, electrode mixture, electrode structure and battery
US7422826B2 (en) In situ thermal polymerization method for making gel polymer lithium ion rechargeable electrochemical cells
KR20030051606A (en) Polymer electrolyte

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20071029

Year of fee payment: 4

LAPS Lapse due to unpaid annual fee