JPWO2015080288A1 - リチウムイオンキャパシタ用負極活物質 - Google Patents
リチウムイオンキャパシタ用負極活物質 Download PDFInfo
- Publication number
- JPWO2015080288A1 JPWO2015080288A1 JP2015551036A JP2015551036A JPWO2015080288A1 JP WO2015080288 A1 JPWO2015080288 A1 JP WO2015080288A1 JP 2015551036 A JP2015551036 A JP 2015551036A JP 2015551036 A JP2015551036 A JP 2015551036A JP WO2015080288 A1 JPWO2015080288 A1 JP WO2015080288A1
- Authority
- JP
- Japan
- Prior art keywords
- active material
- negative electrode
- electrode active
- lithium ion
- average particle
- 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
- 239000007773 negative electrode material Substances 0.000 title claims abstract description 45
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 44
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 43
- 239000003990 capacitor Substances 0.000 title claims abstract description 39
- 239000002245 particle Substances 0.000 claims abstract description 45
- 239000006229 carbon black Substances 0.000 claims abstract description 33
- 239000007833 carbon precursor Substances 0.000 claims abstract description 17
- 239000003575 carbonaceous material Substances 0.000 claims abstract description 11
- 238000001493 electron microscopy Methods 0.000 claims abstract description 5
- 239000002131 composite material Substances 0.000 claims abstract description 3
- 229910052744 lithium Inorganic materials 0.000 claims description 10
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 238000005259 measurement Methods 0.000 claims description 3
- 238000010277 constant-current charging Methods 0.000 claims description 2
- 238000010280 constant potential charging Methods 0.000 claims 1
- 238000001179 sorption measurement Methods 0.000 description 17
- 238000010438 heat treatment Methods 0.000 description 13
- 239000011295 pitch Substances 0.000 description 13
- 230000001590 oxidative effect Effects 0.000 description 12
- 239000011148 porous material Substances 0.000 description 12
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 11
- 230000031864 metaphase Effects 0.000 description 10
- 229910001873 dinitrogen Inorganic materials 0.000 description 9
- 238000000034 method Methods 0.000 description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 6
- 239000011230 binding agent Substances 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 5
- 238000010298 pulverizing process Methods 0.000 description 5
- 238000002156 mixing Methods 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 3
- 238000007600 charging Methods 0.000 description 3
- 238000010304 firing Methods 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 229920006395 saturated elastomer Polymers 0.000 description 3
- 239000002002 slurry Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- MYRTYDVEIRVNKP-UHFFFAOYSA-N 1,2-Divinylbenzene Chemical compound C=CC1=CC=CC=C1C=C MYRTYDVEIRVNKP-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 239000011889 copper foil Substances 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000002336 sorption--desorption measurement Methods 0.000 description 2
- 229910013870 LiPF 6 Inorganic materials 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 239000011149 active material Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- 230000003292 diminished effect Effects 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000002612 dispersion medium Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 239000007849 furan resin Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 239000007770 graphite material Substances 0.000 description 1
- 238000005087 graphitization Methods 0.000 description 1
- 238000007561 laser diffraction method Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052987 metal hydride Inorganic materials 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 1
- -1 nickel metal hydride Chemical class 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000011301 petroleum pitch Substances 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 239000007774 positive electrode material Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000011802 pulverized particle Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- ZSDSQXJSNMTJDA-UHFFFAOYSA-N trifluralin Chemical compound CCCN(CCC)C1=C([N+]([O-])=O)C=C(C(F)(F)F)C=C1[N+]([O-])=O ZSDSQXJSNMTJDA-UHFFFAOYSA-N 0.000 description 1
- 238000001132 ultrasonic dispersion Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- 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
- H01G11/04—Hybrid capacitors
- H01G11/06—Hybrid capacitors with one of the electrodes allowing ions to be reversibly doped thereinto, e.g. lithium ion capacitors [LIC]
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/20—Graphite
- C01B32/205—Preparation
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/20—Graphite
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- 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
- H01G11/24—Electrodes characterised by structural features of the materials making up or comprised in the electrodes, e.g. form, surface area or porosity; characterised by the structural features of powders or particles used therefor
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- 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
- H01G11/34—Carbon-based characterised by carbonisation or activation of carbon
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- 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
- H01G11/38—Carbon pastes or blends; Binders or additives therein
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- 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
- H01G11/42—Powders or particles, e.g. composition thereof
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- 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
- H01G11/50—Electrodes characterised by their material specially adapted for lithium-ion capacitors, e.g. for lithium-doping or for intercalation
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- 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
- H01G11/84—Processes for the manufacture of hybrid or EDL capacitors, or components thereof
- H01G11/86—Processes for the manufacture of hybrid or EDL capacitors, or components thereof specially adapted for electrodes
-
- 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
- H01M4/36—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
-
- 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
- H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
- H01M4/96—Carbon-based electrodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
-
- 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
-
- 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
- H01M4/139—Processes of manufacture
- H01M4/1393—Processes of manufacture of electrodes based on carbonaceous material, e.g. graphite-intercalation compounds or CFx
-
- 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
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/362—Composites
- H01M4/364—Composites as mixtures
-
- 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
-
- 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
-
- 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
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Electrochemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Composite Materials (AREA)
- Electric Double-Layer Capacitors Or The Like (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
Description
平均粒径を5〜20μmとしたものがスラリー化の作業性を向上させることができるので、この範囲とするのが更に好ましい。
BET比表面積が100m2/g以上であれば、負極活物質のリチウム金属を対極に用いた際の初回の単位重量当りの充電容量を700mAh/g以上を達成することができ、リチウムイオンキャパシタのセル体積を縮小させても同じエネルギーを維持でき、高エネルギー密度化が達成できる。
一方、BET比表面積が大きくなりすぎると、リチウムイオンキャパシタ用活物質を銅箔にバインダーを用いて塗布する際、結着させる面積が大きくなるためバインダーの結着効果が薄れ、剥離が起き易くなるため、BET比表面積を350m2/g以下として負極の塗工性に優れたものとする。
このカーボンブラックと炭素前駆体の重量比が、カーボンブラック100重量部に対してカーボンブラックが30重量部以上であれば、カーボンブラックと炭素前駆体との複合化による効果により高出力特性を実現できる。
また、カーボンブラック100重量部に対して、炭素前駆体を200重量部以下とすることによって、負極材のBET比表面積を好ましい範囲内に保持することができ、負極活物質のリチウム金属を対極に用いた際の初回の単位重量当りの充電容量を高めることができる。
また、原材料は安価なカーボンブラックと炭素前駆体であり、これらの混合物を焼成後に粉砕するという簡単な工程によって、本発明の炭素多孔性粉末が得られるものである。
更に、カーボンブラックの種類の選択、炭素前駆体との配合比により細孔構造の制御も可能である。
実施例1
平均粒径30nm、BET比表面積254m2/gのカーボンブラック100重量部と軟化点110℃、メタフェーズ量(QI量)13%の光学的等方性ピッチ50重量部を加熱ニーダーで混捏し、これを非酸化性雰囲気下1000℃で焼成する。これを平均粒径2μmに粉砕し、リチウムイオンキャパシタ用負極活物質を得た。
平均粒径30nm、BET比表面積1000m2/gのカーボンブラック100重量部と軟化点110℃、メタフェーズ量(QI量)13%の光学的等方性ピッチ100重量部を加熱ニーダーで混捏し、これを非酸化性雰囲気下1000℃で焼成する。これを平均粒径2μmに粉砕し、リチウムイオンキャパシタ用負極活物質を得た。
平均粒径30nm、BET比表面積1000m2/gのカーボンブラック100重量部と軟化点110℃、メタフェーズ量(QI量)13%の光学的等方性ピッチ30重量部を加熱ニーダーで混捏し、これを非酸化性雰囲気下1000℃で焼成する。これを平均粒径2μmに粉砕し、リチウムイオンキャパシタ用負極活物質を得た。
平均粒径30nm、BET比表面積254m2/gのカーボンブラック100重量部と軟化点110℃、メタフェーズ量(QI量)13%の光学的等方性ピッチ30重量部を加熱ニーダーで混捏し、これを非酸化性雰囲気下1000℃で焼成する。これを平均粒径2μmに粉砕し、リチウムイオンキャパシタ用負極活物質を得た。
平均粒径30nm、BET比表面積1000m2/gのカーボンブラック100重量部と軟化点110℃、メタフェーズ量(QI量)13%の光学的等方性ピッチ150重量部を加熱ニーダーで混捏し、これを非酸化性雰囲気下1000℃で焼成する。これを平均粒径2μmに粉砕し、リチウムイオンキャパシタ用負極活物質を得た。
平均粒径30nm、BET比表面積1000m2/gのカーボンブラック100重量部と軟化点110℃、メタフェーズ量(QI量)13%の光学的等方性ピッチ200重量部を加熱ニーダーで混捏し、これを非酸化性雰囲気下1000℃で焼成する。これを平均粒径2μmに粉砕し、リチウムイオンキャパシタ用負極活物質を得た。
実施例3で用いた炭化物を再度非酸化雰囲気下2000℃で焼成し、リチウムイオンキャパシタ用負極活物質を得た。
粉砕後の平均粒径を5μmとした以外は実施例2と同様に作製した。
粉砕後の平均粒径を10μmとした以外は実施例2と同様に作製した。
光学的等方性ピッチ60重量部とした以外は実施例1と同様に作製した。
平均粒径34nm、BET比表面積1270m2/gのカーボンブラック100重量部と軟化点110℃、メタフェーズ量(QI量)13%の光学的等方性ピッチ100重量部を加熱ニーダーで混捏し、これを非酸化性雰囲気下1000℃で焼成する。これを平均粒径2μmに粉砕し、リチウムイオンキャパシタ用負極活物質を得た。
平均粒径48nm、BET比表面積39m2/gのカーボンブラック100重量部と軟化点110℃、メタフェーズ量(QI量)13%の光学的等方性ピッチ133重量部を加熱ニーダーで混捏し、これを非酸化性雰囲気下1000℃で焼成する。これを平均粒径2μmに粉砕し、リチウムイオンキャパシタ用負極活物質を得た。
平均粒径48nm、BET比表面積39m2/gのカーボンブラック100重量部と軟化点110℃、メタフェーズ量(QI量)13%の光学的等方性ピッチ54重量部を加熱ニーダーで混捏し、これを非酸化性雰囲気下1000℃で焼成する。これを平均粒径2μmに粉砕し、負極活物質を得た。
平均粒径24nm、BET比表面積117m2/gのカーボンブラック100重量部と軟化点110℃、メタフェーズ量(QI量)13%の光学的等方性ピッチ50重量部を加熱ニーダーで混捏し、これを非酸化性雰囲気下1000℃で焼成する。これを平均粒径12μmに粉砕し、リチウムイオンキャパシタ用負極活物質を得た。
P/V(P0−P)=(1/VmC)+{(C−1)/VmC}(P/P0)(1)
S=kVm ...................................................(2)
P0 :飽和蒸気圧
P:吸着平衡圧
V:吸着平衡圧Pにおける吸着量
Vm:単分子層吸着量
C:吸着熱などに関するパラメーター
S:比表面積
k:窒素単分子占有面積 0.162nm2
t=〔13.99/{0.034−log(P/P0)}〕0.5.........(3)
により求めた。
P0:飽和蒸気圧
P:吸着平衡圧
Claims (5)
- 電子顕微鏡法による平均粒子径が12〜300nmのカーボンブラックを炭素前駆体と混捏し、800℃〜3200℃で焼成し、粉砕して平均粒径(D50)を1〜20μmとしたカーボンブラックと炭素質材料からなる多孔性複合炭素材料であって、BET比表面積が100m2/g以上350m2/g以下であるリチウムイオンキャパシタ用負極活物質。
- 請求項1において、前記カーボンブラックのBET比表面積が200〜1500m2/gであるリチウムイオンキャパシタ用負極活物質。
- 請求項1〜2のいずれかにおいて、カーボンブラック100重量部に対して、炭素前駆体が30重量部以上200重量部以下であるリチウムイオンキャパシタ用負極活物質。
- 請求項1〜3のいずれかにおいて、リチウム金属を対極に用いて、測定温度25℃にて、電流値0.5mA/cm2で電圧値が0.01Vになるまで定電流充電を行った後、電流値が0.01mA/cm2になるまで定電圧充電を行った際の初回の充電容量が700mAh/g以上1600mAh/g以下である、リチウムイオンキャパシタ用負極活物質。
- 電子顕微鏡法による平均粒子径が12〜300nmで且つBET比表面積が200〜1500m2/gのカーボンブラック100重量部を炭素前駆体30重量部以上200重量部以下と混捏し、この混捏物を800℃〜3200℃で焼成、もしくは黒鉛化し、平均粒径(D50)を1〜20μmに粉砕し、比表面積を100m2/g以上350m2/g以下に調整するリチウムイオンキャパシタ用負極活物質の製造方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013247109 | 2013-11-29 | ||
JP2013247109 | 2013-11-29 | ||
PCT/JP2014/081769 WO2015080288A1 (ja) | 2013-11-29 | 2014-12-01 | リチウムイオンキャパシタ用負極活物質 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPWO2015080288A1 true JPWO2015080288A1 (ja) | 2017-03-16 |
JP6356145B2 JP6356145B2 (ja) | 2018-07-11 |
Family
ID=53199222
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2015551036A Active JP6356145B2 (ja) | 2013-11-29 | 2014-12-01 | リチウムイオンキャパシタ用負極活物質の製造方法 |
Country Status (5)
Country | Link |
---|---|
US (1) | US10102980B2 (ja) |
EP (1) | EP3076417B9 (ja) |
JP (1) | JP6356145B2 (ja) |
KR (1) | KR20160091895A (ja) |
WO (1) | WO2015080288A1 (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR102632403B1 (ko) * | 2016-12-29 | 2024-02-05 | 오씨아이 주식회사 | 리튬 이차전지용 인조흑연 및 이의 제조방법 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008150270A (ja) * | 2006-12-15 | 2008-07-03 | Nippon Carbon Co Ltd | 二次電池負極活物質用炭素質多孔性粉末及びその製法 |
WO2015080253A1 (ja) * | 2013-11-29 | 2015-06-04 | 旭化成株式会社 | リチウムイオンキャパシタ |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4787968B2 (ja) | 2005-03-22 | 2011-10-05 | 公益財団法人かがわ産業支援財団 | ナノ金属または金属酸化物担持活性炭の高効率製造方法 |
KR101365568B1 (ko) * | 2006-07-19 | 2014-02-20 | 니폰 카본 컴퍼니 리미티드 | 리튬 이온 2차 전지용 음극 활물질 및 이를 포함한 음극 |
JP2008050237A (ja) | 2006-08-28 | 2008-03-06 | Toda Kogyo Corp | 球状多孔性炭素粒子粉末及びその製造法 |
JP5302646B2 (ja) * | 2008-12-05 | 2013-10-02 | 富士重工業株式会社 | プレドープ型蓄電デバイス |
JP5372568B2 (ja) * | 2009-03-27 | 2013-12-18 | 富士重工業株式会社 | 蓄電デバイスおよびその製造方法 |
JP2010267875A (ja) * | 2009-05-15 | 2010-11-25 | Asahi Kasei Corp | 非水系リチウム型蓄電素子用負極、及びそれを用いた非水系リチウム型蓄電素子 |
-
2014
- 2014-12-01 US US15/100,098 patent/US10102980B2/en active Active
- 2014-12-01 JP JP2015551036A patent/JP6356145B2/ja active Active
- 2014-12-01 WO PCT/JP2014/081769 patent/WO2015080288A1/ja active Application Filing
- 2014-12-01 KR KR1020167012796A patent/KR20160091895A/ko not_active Application Discontinuation
- 2014-12-01 EP EP14866727.2A patent/EP3076417B9/en active Active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008150270A (ja) * | 2006-12-15 | 2008-07-03 | Nippon Carbon Co Ltd | 二次電池負極活物質用炭素質多孔性粉末及びその製法 |
WO2015080253A1 (ja) * | 2013-11-29 | 2015-06-04 | 旭化成株式会社 | リチウムイオンキャパシタ |
Also Published As
Publication number | Publication date |
---|---|
WO2015080288A1 (ja) | 2015-06-04 |
EP3076417A1 (en) | 2016-10-05 |
US20170040124A1 (en) | 2017-02-09 |
KR20160091895A (ko) | 2016-08-03 |
US10102980B2 (en) | 2018-10-16 |
EP3076417B1 (en) | 2023-11-01 |
EP3076417B9 (en) | 2024-02-28 |
EP3076417A4 (en) | 2017-01-25 |
JP6356145B2 (ja) | 2018-07-11 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5041351B2 (ja) | リチウムイオン二次電池用負極活物質の製造方法及びリチウムイオン二次電池用負極活物質 | |
Thangavel et al. | Going beyond lithium hybrid capacitors: proposing a new high‐performing sodium hybrid capacitor system for next‐generation hybrid vehicles made with bio‐inspired activated carbon | |
Wu et al. | Anchoring hydrous RuO2 on graphene sheets for high‐performance electrochemical capacitors | |
JP6279713B2 (ja) | 電極用炭素質成形体、及びその製造方法 | |
JP6223466B2 (ja) | リチウムイオンキャパシタ | |
JP7371735B2 (ja) | リチウムイオン二次電池用負極材の製造方法、及びリチウムイオン二次電池用負極材 | |
JP6675146B2 (ja) | 非水系リチウム型蓄電素子 | |
Yang et al. | Carbon nanonion-assembled microspheres for excellent gravimetric and volumetric Na-Ion storage | |
KR102157182B1 (ko) | 활성탄과 환원 그래핀옥사이드를 포함하는 수퍼커패시터용 전극, 그 제조방법, 및 이를 포함하는 수퍼커패시터 | |
Zhu et al. | Pyrolyzed polyaniline and graphene nano sheet composite with improved rate and cycle performance for lithium storage | |
JP2015225876A (ja) | 非水系リチウム型蓄電素子用正極活物質及びそれを用いた非水系リチウム型蓄電素子 | |
Liao et al. | Preparation of activated carbon for electric double layer capacitors | |
JP7462066B2 (ja) | 非水系アルカリ金属蓄電素子および正極塗工液 | |
JP6356145B2 (ja) | リチウムイオンキャパシタ用負極活物質の製造方法 | |
CN115023828A (zh) | 锂离子二次电池用负极材料及其制造方法、锂离子二次电池用负极、以及锂离子二次电池 | |
JP2013080780A (ja) | 非水系リチウム型蓄電素子用負極材料、及びそれを用いた非水系リチウム型蓄電素子 | |
KR20140087534A (ko) | 알칼리계 활성화제로 활성화 처리된 활성탄소 및 이를 이용한 슈퍼커패시터용 전극 | |
JP2011258421A (ja) | リチウムイオン二次電池用負極活物質及び負極 | |
Gao et al. | Achieving high volumetric EDLC carbons via hydrothermal carbonization and cyclic activation | |
JP2016178126A (ja) | 非水系リチウム型蓄電素子 | |
JP2016004962A (ja) | 蓄電デバイス用電極材料及びその製造方法、蓄電デバイス用電極合材、並びに、蓄電デバイス用電極の製造方法 | |
KR20230117194A (ko) | 리튬이온 이차 전지용 음극재 및 그 제조 방법, 리튬이온이차 전지용 음극, 및 리튬이온 이차 전지 | |
JP5604227B2 (ja) | キャパシタ用活性炭の製造方法及び活性炭 | |
Zhang et al. | Molten salt assisted fabrication of coal-based carbon anode materials for efficient Na ion storage | |
JP2020036050A (ja) | 非水系リチウム型蓄電素子 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20171017 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20171212 |
|
A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20180116 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20180416 |
|
A911 | Transfer to examiner for re-examination before appeal (zenchi) |
Free format text: JAPANESE INTERMEDIATE CODE: A911 Effective date: 20180424 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20180529 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20180613 |
|
R150 | Certificate of patent or registration of utility model |
Ref document number: 6356145 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |