KR20170102684A - Method of Activating Carbon Material Surface Property and Carbon Material Electrode thereof - Google Patents
Method of Activating Carbon Material Surface Property and Carbon Material Electrode thereof Download PDFInfo
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- 239000003575 carbonaceous material Substances 0.000 title claims abstract description 82
- 238000000034 method Methods 0.000 title claims description 22
- 230000003213 activating effect Effects 0.000 title claims description 19
- 230000004913 activation Effects 0.000 claims abstract description 22
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 28
- 239000011149 active material Substances 0.000 claims description 24
- 239000000463 material Substances 0.000 claims description 14
- 239000002134 carbon nanofiber Substances 0.000 claims description 6
- 239000004966 Carbon aerogel Substances 0.000 claims description 3
- 229910021393 carbon nanotube Inorganic materials 0.000 claims description 3
- 239000002041 carbon nanotube Substances 0.000 claims description 3
- 229910021389 graphene Inorganic materials 0.000 claims description 3
- 229910002804 graphite Inorganic materials 0.000 claims description 3
- 239000010439 graphite Substances 0.000 claims description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical class C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 3
- 238000005520 cutting process Methods 0.000 claims description 2
- 230000001678 irradiating effect Effects 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 14
- 238000004146 energy storage Methods 0.000 abstract description 10
- 238000001994 activation Methods 0.000 description 20
- 239000007772 electrode material Substances 0.000 description 9
- 230000000052 comparative effect Effects 0.000 description 6
- 229910052799 carbon Inorganic materials 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 239000006258 conductive agent Substances 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 239000002033 PVDF binder Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000002484 cyclic voltammetry Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
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- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/58—Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy; of polyanionic structures, e.g. phosphates, silicates or borates
- H01M4/583—Carbonaceous material, e.g. graphite-intercalation compounds or CFx
- H01M4/587—Carbonaceous material, e.g. graphite-intercalation compounds or CFx for inserting or intercalating light metals
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- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/22—Electrodes
- H01G11/30—Electrodes characterised by their material
- H01G11/32—Carbon-based
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
- H01M4/133—Electrodes based on carbonaceous material, e.g. graphite-intercalation compounds or CFx
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- 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
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- Y02E60/122—
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- 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
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Abstract
Description
본 발명은 탄소재료 전극에 관한 것으로, 특히 CO2 레이저를 활용하여 탄소재료 표면특성이 활성화된 탄소재료 전극에 관한 것이다.TECHNICAL FIELD The present invention relates to a carbon material electrode, and more particularly, to a carbon material electrode in which carbon material surface characteristics are activated by utilizing a CO 2 laser.
최근 들어 탄소재료는 리튬이차전지 또는 슈퍼커패시터의 전극 물질로서 가장 많이 사용되고 있다.Recently, carbon materials are most widely used as electrode materials for lithium secondary batteries or super capacitors.
이러한 탄소재료의 전극 물질 활용은 친환경적이면서 높은 열적 안정성과 화학적 안정성 및 전기전도성 등 많은 장점과 함께 에너지 저장장치의 에너지 용량에 가장 큰 영향을 주는 탄소재료의 비표면적과 기공특성에 대한 특수한 처리 기술을 요구하게 된다.The use of such carbon material electrode materials has many advantages such as environmental friendliness, high thermal stability, chemical stability and electric conductivity, and it has special treatment technology for specific surface area and pore characteristics of carbon materials which have the greatest effect on energy capacity of energy storage device .
일례로, 탄소재료의 비표면적과 기공특성에 대한 특수한 처리 기술로 탄소재료의 표면특성 활성화가 있다. 상기 표면특성 활성화는 탄소재료를 산 또는 염기를 이용하여 화학적 활성화하거나 또는 다양한 기체를 이용한 기상 활성화 방법, 물리적 활성화 방법 등이 있다.For example, there is a special treatment technique for the specific surface area and pore characteristics of carbon materials to activate the surface properties of carbon materials. The activation of the surface characteristics may be achieved by chemically activating the carbon material with an acid or a base, or by a gas activation method using a variety of gases, a physical activation method, and the like.
하지만, 화학적 활성화 방식 또는 기상 활성화 방식 또는 물리적 활성화 방식을 적용하여 탄소재료 전극이 제조되는 경우 비용이 많이 들고, 활성화 후 전극 재료의 수득률이 낮으며, 활성화 처리시간이 오래 걸리며, 특히 전극 재료의 일부만 활성화 하는 것이 불가능 하다.However, when the carbon material electrode is manufactured by applying the chemical activation method, the vapor activation method, or the physical activation method, the cost is high, the yield of the electrode material after activation is low, the activation treatment time is long, It is impossible to activate.
이에 상기와 같은 점을 감안한 본 발명은 CO2 레이저를 활용하여 에너지 저장장치용 전극으로 사용되는 탄소재료 전극의 표면특성을 손쉬우면서 전극 재료의 일부만 선택적으로 활성화하는 탄소재료 표면특성 활성화 방법 및 탄소재료 전극의 제공에 목적이 있다.In view of the above, the present invention provides a method for activating a carbon material surface property that selectively activates a part of an electrode material while facilitating surface characteristics of a carbon material electrode used as an electrode for an energy storage device utilizing a CO 2 laser, The object is to provide a material electrode.
상기와 같은 목적을 달성하기 위한 본 발명의 탄소재료 표면특성 활성화 방법은 탄소재료 활물질 전극에 대한 CO2 레이저 조사 영역을 설정하는 단계; 상기 탄소재료 활물질 전극에 조사되는 상기 CO2 레이저의 조사 에너지크기를 조절하는 단계; 상기 CO2 레이저를 상기 탄소재료 활물질 전극에 조사하여 활성화된 탄소재료 활물질 활성화 전극으로 제조하는 단계; 를 포함하는 것을 특징으로 한다.According to another aspect of the present invention, there is provided a method of activating a carbon material surface characteristic comprising: setting a CO 2 laser irradiation region for a carbon material active material electrode; Adjusting a size of an irradiation energy of the CO 2 laser irradiated to the carbon material active material electrode; Irradiating the CO 2 laser to the carbon material active material electrode to produce an activated carbon material active material activating electrode; And a control unit.
바람직한 실시예로서, 상기 탄소재료 활물질 전극은 활성탄, 탄소나노튜브, 흑연, 카본에어로겔, 탄소나노섬유, 기상성장탄소섬유, 그래핀 및 이들의 혼합물로 이루어진 군을 재료로 사용한다.In a preferred embodiment, the carbon material active electrode is made of a material selected from the group consisting of activated carbon, carbon nanotubes, graphite, carbon aerogels, carbon nanofibers, vapor grown carbon fibers, graphene, and mixtures thereof.
바람직한 실시예로서, 상기 CO2 레이저 조사 영역은 상기 탄소재료 활물질 전극의 전체 영역의 0% 초과하며, 상기 조사 에너지크기는 0.6W 이상 10W이하로 하여 조사한다.In a preferred embodiment, the CO 2 laser irradiation region is more than 0% of the entire area of the carbon material active electrode, and the irradiation energy is 0.6 W or more and 10 W or less.
바람직한 실시예로서, 상기 탄소재료 활물질 활성화 전극은 격자무늬의 레이저 조사 패턴을 형성한다.In a preferred embodiment, the carbon material active material activating electrode forms a lattice pattern of laser irradiation pattern.
바람직한 실시예로서, 상기 탄소재료 활물질 활성화 전극은 소정의 직경으로 절단하여 코인셀(coin cell)로 제조되는 것을 특징으로 한다.In a preferred embodiment, the carbon material active electrode activating electrode is cut into a predetermined diameter and is fabricated into a coin cell.
또한, 상기와 같은 목적을 달성하기 위한 본 발명의 탄소재료전극은 탄소재료 활물질 전극에 0~50% 이하로 설정된 CO2 레이저 조사 영역으로 0.6W ~ 10W이하의 에너지크기로 CO2 레이저를 조사하여 격자무늬 조사 패턴이 형성된 탄소재료 활물질 활성화 전극으로 제조됨으로써 에너지 저장장치용 전극으로 사용되는 것을 특징으로 한다.In addition, the carbon electrode material of the present invention for achieving the same purpose as the above by examining the 0 ~ CO 2 laser as an energy amount of 0.6W ~ 10W or less CO 2 laser irradiation area is set to 50% or less to the electrode active material a carbon material And is used as an electrode for an energy storage device by being made of a carbon material active material activated electrode in which a grid pattern irradiation pattern is formed.
이러한 본 발명은 CO2 레이저 활성화 전극 및 그 제조방법을 제공함으로써 다음과 같은 장점 및 효과가 있다.The present invention has the following advantages and effects by providing a CO 2 laser activated electrode and a manufacturing method thereof.
첫째, 탄소재료 전극 재료의 표면에 직접 선택적으로 단시간에 활성화가 가능하다, 둘째, 이미 집전체에 전사된 탄소재료 전극에 활성화를 함으로써 활성화로 인한 활물질의 손실을 최소화 할 수 있다. 셋째, 탄소재료 활성화를 통하여 기공특성 및 비표면적 특성이 향상됨으로써 에너지 저장장치의 에너지 용량을 향상할 수 있다. 넷째, 기존의 화학적 활성화, 기상 활성화, 물리적 활성화에 의한 단점을 모두 해소할 수 있다.Firstly, it is possible to selectively activate directly on the surface of the carbon material electrode material in a short time. Secondly, activation of the carbon material electrode already transferred to the current collector can minimize the loss of the active material due to activation. Third, the energy capacity of the energy storage device can be improved by improving pore characteristics and specific surface characteristics through carbon material activation. Fourth, all disadvantages of existing chemical activation, vapor activation, and physical activation can be solved.
도 1은 본 발명에 따른 탄소재료 전극을 제조하기 위한 탄소재료 표면특성 활성화 방법의 순서도이고, 도 2는 본 발명에 따른 CO2 레이저 활성화되지 않은 탄소재료 전극의 전기화학 특성을 나타내는 그래프이며, 도 3은 본 발명에 따른 탄소재료 전극의 CO2레이저 조사 영역 및 패턴 예이며, 도 4는 본 발명에 따른 CO2 레이저 활성화된 탄소재료 전극의 전기화학 특성을 나타내는 그래프이다.FIG. 1 is a flow chart of a method of activating a carbon material surface characteristic method for manufacturing a carbon material electrode according to the present invention, FIG. 2 is a graph showing electrochemical characteristics of a carbon material electrode not activated by a CO 2 laser according to the present invention, 3 is an example of a CO 2 laser irradiated region and pattern of a carbon material electrode according to the present invention, and FIG. 4 is a graph showing an electrochemical characteristic of a CO 2 laser activated carbon material electrode according to the present invention.
도 1은 본 발명에 따른 탄소재료 전극을 제조하기 위한 탄소재료 표면특성 활성화 방법의 순서도를 나타낸다. 이하, 탄소재료 전극 제조와 코인셀 제조는 이 분야에서 사용되는 탄소재료 전극 제조 장치와 코인셀 제조 장치를 적용하므로 특별히 언급되지 않는다.1 shows a flowchart of a method of activating a carbon material surface characteristic for producing a carbon material electrode according to the present invention. Hereinafter, the production of the carbon material electrode and the manufacturing of the coin cell are not specifically mentioned because the carbon material electrode manufacturing apparatus and the coin cell manufacturing apparatus used in this field are applied.
S10은 에너지 저장장치용 탄소재료 전극 제조단계이다. 이를 위해, 탄소재료, 알루미늄으로 이루어진 집전체, 활물질, 도전제 및 바인더를 제조 재료로 사용하고, 상기 제조 재료를 적층하거나 결합하여 에너지 저장장치용 탄소재료 활물질 전극으로 제조한다. 특히, 상기 탄소재료는, 활성탄, 탄소나노튜브, 흑연, 카본에어로겔, 탄소나노섬유, 기상성장탄소섬유, 그래핀 및 이들의 혼합물로 이루어진 군으로부터 선택되는 것을 사용할 수 있고, 더욱 바람직하게는 전극재료로 사용되는 탄소라면 어떤 것이든 사용하여도 무관하다. 도 2를 참조하면, 상기 탄소재료 활물질 전극이 CO2 레이저로 활성화되지 않은 상태에서 전극으로서 갖는 전기화학 특성을 그래프로 알 수 있다.S10 is a carbon material electrode manufacturing step for an energy storage device. To this end, a carbon material, a current collector made of aluminum, an active material, a conductive agent, and a binder are used as a manufacturing material, and the manufacturing materials are laminated or combined to produce a carbon material active electrode for an energy storage device. In particular, the carbon material may be selected from the group consisting of activated carbon, carbon nanotubes, graphite, carbon aerogels, carbon nanofibers, vapor grown carbon fibers, graphene, and mixtures thereof, Any carbon that is used as carbon can be used. Referring to FIG. 2, electrochemical characteristics of the carbon material active electrode as an electrode in a state where the electrode is not activated by a CO 2 laser can be shown in a graph.
S20은 CO2레이저 조사영역설정단계이다. 이 경우, CO2레이저 조사영역은 상기 탄소재료 활물질 전극의 전체 전극 영역중 0% ~ 50%로 설정된다. 특히, 상기 CO2 레이저 조사 영역은 탄소재료 활물질 전극의 전체 영역의 0% 초과하는 것이 바람직하다. 이러한 이유는 사용되는 에너지의 크기 및 목적에 따라 전체 영역의 0%일 경우에는 조사하지 않는 것과 같기 때문이다.S20 is a CO 2 laser irradiation area setting step. In this case, the CO 2 laser irradiation region is set to 0% to 50% of the entire electrode region of the carbon material active material electrode. In particular, it is preferable that the CO 2 laser irradiation region exceeds 0% of the entire area of the carbon material active material electrode. This is because, according to the size and purpose of energy used, 0% of the total area is not investigated.
S30은 CO2레이저 조사 에너지 설정단계이다. 이 경우, CO2레이저 에너지의 크기는 0.6W ~ 10W로 설정된다. 이러한 이유는 레이저 에너지의 크기가 0.6W 미만일 경우 에너지의 크기가 작아 그 활성화 효과가 적고 반면 10W를 초과할 경우 탄소재료 활물질 전극에 높은 에너지가 도입되어 전극 활성화보다 탄소 구조를 파괴하는 영향을 주어 바람직하지 않기 때문이다.S30 is a CO 2 laser irradiation energy setting step. In this case, the size of the CO 2 laser energy is set to 0.6W to 10W. The reason for this is that when the size of the laser energy is less than 0.6 W, the energy is small and the activation effect is small. On the other hand, when it exceeds 10 W, high energy is introduced into the carbon material active electrode, I do not.
S40은 CO2레이저 조사에 의한 탄소재료 활물질 전극의 활성화단계이다. 이를 통해 탄소재료 활물질 전극은 탄소재료 활물질 활성화 전극으로 제조된다.S40 is the activation step of carbon material active electrode by CO 2 laser irradiation. As a result, the carbon material active electrode is manufactured as a carbon material active material activating electrode.
도 3을 참조하면, CO2레이저 조사장치(100)를 이용해 탄소재료 활물질 전극(1)에 형성된 레이저 조사 패턴(10)을 예시한다. 상기 레이저 조사 패턴(10)은 격자무늬로 형성되고, 상기 레이저 조사 패턴(10)은 탄소재료 활물질 전극(1)의 전체 전극 영역중 50% 이하로 CO2 레이저가 조사됨을 나타낸다. 도 4를 참조하면, 탄소재료 활물질 전극이 CO2 레이저로 활성화되어 탄소재료 활물질 활성화 전극으로 제조된 상태에서 전극으로서 갖는 전기화학 특성을 그래프로 알 수 있다.Referring to FIG. 3, a
S50은 코인셀(coin cell) 소재 제조단계이다. 이 경우, 탄소재료 활물질 활성화 전극을 절단기 등을 이용해 적절한 크기로 절단함으로써 코인셀 소재가 제조된다. 특히, 상기 코인셀 소재의 직경은 12Φ로 제조한다.S50 is a coin cell material manufacturing step. In this case, the coin cell material is manufactured by cutting the carbon material active material activating electrode to an appropriate size using a cutter or the like. In particular, the diameter of the coin-cell material is made of 12 Φ.
S60은 코인셀 제조단계이다. 이 경우, 코인셀은 코인셀 소재를 용도에 맞춰 적절한 형상 변경 등을 통해 제조되고, 전극, 분리막, 전해질, 스페이서, 스프링 등을 구성요소로 한다. 상기 코인셀의 구성요소는 상용화된 코인셀의 부품과 동일한 부품이나 상기 전극은 도 3의 레이저 조사 패턴(10)을 갖는 탄소재료 활물질 활성화 전극인 차이가 있다.S60 is a coin cell manufacturing step. In this case, the coin cell is manufactured by appropriately changing the shape of the coin cell material in accordance with the purpose of use, and is composed of an electrode, a separator, an electrolyte, a spacer, a spring, and the like. The constituent elements of the coin cell are the same as the parts of the commercialized coin cell, but the electrode is a carbon material active material activating electrode having the
그러므로, 탄소재료 전극을 제조하기 위한 탄소재료 표면특성 활성화 방법은 CO2 레이저 활성화 공정을 제외한 모든 공정은 기존과 동일한 공정을 적용한다.Therefore, in the method of activating the carbon material surface characteristic for manufacturing the carbon material electrode, the same process as that of the conventional process is applied to all processes except the CO 2 laser activation process.
이하 본 발명의 실시예를 통하여 더욱 상세하게 설명하지만, 하기 개시되는 본 발명의 실시 형태는 하나의 예시로써, 본 발명의 범위는 이들의 실시 형태에 한정되지 않는다. 본 발명의 범위는 특허청구 범위에 표시되었고, 더욱이 특허 청구범위 기록과 균등한 의미 및 범위 내에서의 모든 변경을 포함하고 있다.BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the embodiments of the present invention will be described in detail with reference to the embodiments of the present invention. However, the embodiments of the present invention disclosed below are only examples and the scope of the present invention is not limited to these embodiments. The scope of the invention is indicated by the appended claims and includes all changes that come within the meaning and range of equivalency of the claims.
실시에는 다음과 같이 실행된다.The implementation is carried out as follows.
먼저, 알루미늄으로 이루어진 집전체에 탄소재료를 활물질로 적용하여 전극으로 제조한다. 이 경우, 상기 전극의 탄소재료 활물질은 상용 활성탄(Commercial Granular Activated Carbon, 예 MSP20)을 사용한다. 또한, 카본블랙(super P)을 도전제로 사용하면서 PVDF(폴리비닐리덴풀올라이트)를 바인더로 사용하여 상기 집전체에 전극을 형성하기위하여 활물질에 첨가한다. 그 결과, 탄소재료 활물질 전극(1)이 제조되고, 상기 탄소재료 활물질 전극(1)에 전극의 영역의 50%에 해당하는 범위로 CO2 레이저 조사영역을 형성하고, 형성된 조사영역에 CO2 레이저를 이용하여 3W의 에너지로 레이저를 조사하여 도 3의 예시와 같이 격자무늬의 레이저 조사 패턴(10)을 갖는 탄소재료 활물질 활성화 전극으로 제조되도록 활성화를 진행한다.First, a carbon material is applied to a current collector made of aluminum to form an electrode. In this case, the carbon material active material of the electrode uses commercially available activated carbon (eg, MSP20). In addition, PVDF (polyvinylidene fluoride) is used as a binder while carbon black (super P) is used as a conductive agent and added to the active material to form an electrode in the current collector. As a result, a carbon material
이어, 상기 탄소재료 활물질 활성화 전극을 12Φ의 직경으로 잘라서 그 내부로 전극, 분리막, 전해질, 스페이서, 스프링을 갖춘 기존에 상용화된 2032 코인셀 형태로 제조한다.Next, the preparation of the carbon material electrode active material activated by commercially existing in its interior in the radial cut of 12 Φ with the electrode, a separator, an electrolyte, a spacer, a spring 2032 coin cell type.
더불어, 본 실시예의 비교예로서 CO2 레이저 활성화를 제외한 모든 공정을 동일하게 하여 비교 샘플을 제조한다.In addition, as a comparative example of this embodiment, a comparative sample is manufactured in the same manner except that the CO 2 laser activation is performed.
이후, 본 실시예의 비교예로 각각 제조된 코인셀을 활용하여 전기화학적 특성평가를 진행한 결과 비교예로 제조된 코인셀의 성능 결과는 도 2로 예시되고, 실시예로 제조된 코인셀의 성능 결과는 도 4로 예시된다. 특히, 하기의 표 1은 도 2와 도 4의 성능을 수치적으로 정리한 결과이다.As a result of evaluating the electrochemical characteristics using the coin cell manufactured as the comparative example of the present embodiment, the performance results of the coin cell manufactured as the comparative example are shown in FIG. 2, and the performance of the coin cell manufactured in the embodiment The results are illustrated in FIG. Particularly, Table 1 below is a numerical summary of the performances of FIG. 2 and FIG. 4.
표 1은 실시예 및 비교예 전기화학 특성평가 결과로서, 상기 두 결과에서 알 수 있다시피 레이저 활성화를 진행할 경우 레이저 활성화를 진행했을 때의 성능이 20.2 % 증가하는 것을 확인 할 수 있었다. 이 경우, 전기화학특성평가에는 순환전압주사법을 사용하였고, 작동전압은 0 ~ 2.7 V, 주사 속도는 2, 10, 50 mV/s 이다. Table 1 shows the results of evaluation of the electrochemical properties of Examples and Comparative Examples. As can be seen from the above two results, it was confirmed that the performance of laser activation was increased by 20.2% when laser activation was performed. In this case, cyclic voltammetry was used for the evaluation of the electrochemical characteristics, the operating voltage was 0 to 2.7 V, and the scanning speed was 2, 10, 50 mV / s.
전술된 바와 같이, 본 실시예에 따른 탄소재료 표면특성 활성화 방법은 탄소재료 활물질 전극에 0~50% 이하로 설정된 CO2 레이저 조사 영역으로 0.6W ~ 10W이하의 에너지크기로 CO2 레이저를 조사하여 격자무늬 조사 패턴이 형성된 탄소재료 활물질 활성화 전극으로 제조하고, 제조된 탄소재료 활물질 활성화 전극을 에너지 저장장치용 전극으로 사용함으로써 CO2 레이저를 활용하여 탄소재료 전극의 표면특성을 손쉬우면서 전극 재료의 일부만 선택적으로 활성화시켜 줄 수 있다.As described above, the activated carbon material surface characteristic process according to this embodiment by irradiation of CO 2 laser energy ~ 0.6W to 10W or less in size of CO 2 laser irradiation area is set to more than 0 to 50% to the carbonaceous material electrode active material A carbon material active electrode having a grid pattern pattern formed thereon, and using the carbonaceous active material activating electrode as an electrode for an energy storage device, a CO 2 laser is used to facilitate the surface characteristics of the carbon material electrode, Only some of them can be selectively activated.
1 : 탄소재료 활물질 전극
10 : 레이저 조사 패턴
100 : CO2레이저 조사장치1: carbon material active material electrode 10: laser irradiation pattern
100: CO 2 laser irradiation device
Claims (6)
상기 탄소재료 활물질 전극에 조사되는 상기 CO2 레이저의 조사 에너지크기를 조절하는 단계;
상기 CO2 레이저를 상기 탄소재료 활물질 전극에 조사하여 활성화된 탄소재료 활물질 활성화 전극으로 제조하는 단계;
를 포함하는 것을 특징으로 하는 탄소재료 표면특성 활성화 방법.
Setting a CO 2 laser irradiation region for the carbon material active electrode;
Adjusting a size of an irradiation energy of the CO 2 laser irradiated to the carbon material active material electrode;
Irradiating the CO 2 laser to the carbon material active material electrode to produce an activated carbon material active material activating electrode;
Wherein the surface of the carbon material is a surface of the carbon material.
[2] The carbon material according to claim 1, wherein the carbon material active electrode is formed of a material selected from the group consisting of activated carbon, carbon nanotubes, graphite, carbon aerogels, carbon nanofibers, vapor grown carbon fibers, graphene, Methods for activating material surface properties.
The method according to claim 1, wherein the carbon material active material activating electrode forms a lattice pattern laser irradiation pattern.
The method of claim 1, further comprising: cutting the carbon material active electrode into a predetermined diameter to produce a coin cell.
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