JP5262119B2 - 負極および電池 - Google Patents
負極および電池 Download PDFInfo
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- JP5262119B2 JP5262119B2 JP2008003541A JP2008003541A JP5262119B2 JP 5262119 B2 JP5262119 B2 JP 5262119B2 JP 2008003541 A JP2008003541 A JP 2008003541A JP 2008003541 A JP2008003541 A JP 2008003541A JP 5262119 B2 JP5262119 B2 JP 5262119B2
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- negative electrode
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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
- H01M4/36—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
-
- 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
- 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
- H01M4/04—Processes of manufacture in general
- H01M4/0402—Methods of deposition of the material
- H01M4/0404—Methods of deposition of the material by coating on electrode collectors
-
- 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
- H01M4/04—Processes of manufacture in general
- H01M4/043—Processes of manufacture in general involving compressing or compaction
-
- 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
- H01M4/04—Processes of manufacture in general
- H01M4/043—Processes of manufacture in general involving compressing or compaction
- H01M4/0433—Molding
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/60—Particles characterised by their size
- C01P2004/61—Micrometer sized, i.e. from 1-100 micrometer
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/12—Surface area
-
- 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
- H01M2004/021—Physical characteristics, e.g. porosity, surface area
-
- 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
- H01M2004/026—Electrodes composed of, or comprising, active material characterised by the polarity
- H01M2004/027—Negative electrodes
-
- 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
Description
0.05≦B/A≦0.2 ……(1)
但し、
A:1570cm -1 以上1620cm -1 以下の範囲に現れるピークの強度
B:1350cm -1 以上1370cm -1 以下の範囲に現れるピークの強度
図1は本発明の実施の形態に係る二次電池の断面構造を表すものである。この電池は、例えば、負極の容量が電極反応物質であるリチウムの吸蔵および放出に基づく容量により表されるリチウムイオン二次電池である。
0.05≦B/A≦0.2 ……(1)
図3は、第2の電池の分解斜視構成を表している。この電池は、正極リード31および負極リード32が取り付けられた巻回電極体30をフィルム状の外装部材40の内部に収容したものである。このフィルム状の外装部材40を用いた電池構造は、いわゆるラミネートフィルム型と呼ばれている。
図6は、第3の電池の分解斜視構成を表している。この電池は、正極51を外装缶54に貼り付けると共に負極52を外装カップ55に収容し、それらを電解液が含浸されたセパレータ53を介して積層したのちにガスケット56を介してかしめたものである。この外装缶54および外装カップ55を用いた電池構造は、いわゆるコイン型と呼ばれている。
はじめに、窒素吸着測定による吸着等温線のαsプロット解析によって求められる全表面積に対する外表面積の割合が16%であり、レーザ回折式粒度分布計による中位径(D50 )が30μmであり、窒素吸着測定に基づきBET法によって決定される比表面積が1.6m2 /gであるメソフェーズ黒鉛小球体を用意した。なお、窒素吸着測定については全自動ガス吸着装置(Beckman Coulter社製のOMNISORP 100CX)により行い、77Kにおけるメソフェーズ黒鉛小球体の吸着等温線を得た。
メソフェーズ黒鉛小球体における全表面積に対する外表面積の割合、中位径D50、および比表面積を後出の表1に示したようにそれぞれ変化させたことを除き、他は実施例1と同様にしてテストセル(図7)を作製した。
さらに、充放電サイクルの進行に伴う放電容量維持率を以下の要領で求めた。上記した充電条件および放電条件にしたがって各テストセルの充放電を繰り返して行い、1サイクル目の放電容量と、50サイクル目の放電容量とをそれぞれ測定し、放電容量維持率(%)=(50サイクル目の放電容量/1サイクル目の放電容量)×100を算出した。
Claims (2)
- 負極集電体に設けられた負極活物質層を有し、
前記負極活物質層は、細孔が設けられたメソフェーズ小球体の球晶黒鉛化物を負極活物質として含み、
前記メソフェーズ小球体の球晶黒鉛化物は、
全表面積に対する外表面積の割合が10%以上50%以下であり、
窒素吸着測定に基づきBET法によって決定される比表面積が0.1m2 /g以上5m2 /g以下であり、
レーザ回折式粒度分布計による中位径(D50)が5μm以上50μm以下であり、
X線広角回折法により算出されるC軸方向の格子面間隔d002 が0.3354nm以上0.3370nm以下であり、
C軸方向の結晶子の大きさが80nm以上であり、
アルゴンイオンレーザ光を用いたラマンスペクトルが以下の条件式(1)を満たし、
前記負極活物質層の体積密度が1.50g/cm 3 以上1.80g/cm 3 以下である
負極。
0.05≦B/A≦0.2 ……(1)
但し、
A:1570cm -1 以上1620cm -1 以下の範囲に現れるピークの強度
B:1350cm -1 以上1370cm -1 以下の範囲に現れるピークの強度 - 正極および負極と共に電解質を備えた電池であって、
前記負極は、負極集電体に設けられた負極活物質層を有し、
前記負極活物質層は、細孔が設けられたメソフェーズ小球体の球晶黒鉛化物を負極活物質として含み、
前記メソフェーズ小球体の球晶黒鉛化物は、
全表面積に対する外表面積の割合が10%以上50%以下であり、
窒素吸着測定に基づきBET法によって決定される比表面積が0.1m2 /g以上5m2 /g以下であり、
レーザ回折式粒度分布計による中位径(D50)が5μm以上50μm以下であり、
X線広角回折法により算出されるC軸方向の格子面間隔d002 が0.3354nm以上0.3370nm以下であり、
C軸方向の結晶子の大きさが80nm以上であり、
アルゴンイオンレーザ光を用いたラマンスペクトルが以下の条件式(1)を満たし、
前記負極活物質層の体積密度が1.50g/cm 3 以上1.80g/cm 3 以下である
電池。
0.05≦B/A≦0.2 ……(1)
但し、
A:1570cm -1 以上1620cm -1 以下の範囲に現れるピークの強度
B:1350cm -1 以上1370cm -1 以下の範囲に現れるピークの強度
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008003541A JP5262119B2 (ja) | 2008-01-10 | 2008-01-10 | 負極および電池 |
TW097148961A TWI389375B (zh) | 2008-01-10 | 2008-12-16 | 陽極活性材料、陽極、電池和製造陽極之方法 |
SG200900072-0A SG154394A1 (en) | 2008-01-10 | 2009-01-07 | Anode active material, anode, battery, and method of manufacturing anode |
KR1020090001786A KR20090077717A (ko) | 2008-01-10 | 2009-01-09 | 부극 활성 물질, 부극, 전지, 및 부극의 제조 방법 |
CN2009100001450A CN101481109B (zh) | 2008-01-10 | 2009-01-09 | 负极活性物质、负极、电池以及制造负极的方法 |
US12/351,387 US20090191462A1 (en) | 2008-01-10 | 2009-01-09 | Anode active material, anode, battery, and method of manufacturing anode |
US13/449,918 US20120202115A1 (en) | 2008-01-10 | 2012-04-18 | Anode active material, anode, battery, and method of manufacturing anode |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008003541A JP5262119B2 (ja) | 2008-01-10 | 2008-01-10 | 負極および電池 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2013030076A Division JP5573989B2 (ja) | 2013-02-19 | 2013-02-19 | 負極活物質、負極、電池、負極の製造方法 |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2009170109A JP2009170109A (ja) | 2009-07-30 |
JP2009170109A5 JP2009170109A5 (ja) | 2010-05-13 |
JP5262119B2 true JP5262119B2 (ja) | 2013-08-14 |
Family
ID=40878429
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Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2008003541A Active JP5262119B2 (ja) | 2008-01-10 | 2008-01-10 | 負極および電池 |
Country Status (6)
Country | Link |
---|---|
US (2) | US20090191462A1 (ja) |
JP (1) | JP5262119B2 (ja) |
KR (1) | KR20090077717A (ja) |
CN (1) | CN101481109B (ja) |
SG (1) | SG154394A1 (ja) |
TW (1) | TWI389375B (ja) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2515370B1 (en) * | 2009-12-16 | 2019-01-23 | Toyota Jidosha Kabushiki Kaisha | Lithium ion secondary battery |
JP2011171096A (ja) * | 2010-02-18 | 2011-09-01 | Sony Corp | 非水電解質電池 |
JP5699559B2 (ja) * | 2010-11-17 | 2015-04-15 | ソニー株式会社 | 非水電解質電池 |
JP2012119151A (ja) * | 2010-11-30 | 2012-06-21 | Sony Corp | 非水電解質二次電池および非水電解質 |
DE102011083537A1 (de) | 2011-09-27 | 2013-03-28 | Siemens Aktiengesellschaft | Speicherelement und Verfahren zu dessen Herstellung |
US9985313B2 (en) * | 2014-01-02 | 2018-05-29 | Wildcat Discovery Technologies, Inc. | Solid state electrolyte and electrode compositions |
KR20170054865A (ko) | 2015-11-10 | 2017-05-18 | 삼성에스디아이 주식회사 | 리튬 이차 전지용 음극 활물질, 이를 포함하는 리튬 이차 전지용 음극 및 이를 포함하는 리튬 이차 전지 |
JP6369643B2 (ja) * | 2016-02-26 | 2018-08-08 | Jsr株式会社 | ドーピングシステム、並びに、電極、電池及びキャパシタの製造方法 |
EP3479431B1 (en) | 2016-06-30 | 2022-08-03 | Wildcat Discovery Technologies, Inc. | Solid electrolyte compositions |
US10461360B2 (en) | 2016-06-30 | 2019-10-29 | Wildcat Discovery Technologies, Inc. | Electrode compositions for solid-state batteries |
US10777845B2 (en) | 2016-11-23 | 2020-09-15 | Wildcat Discovery Technologies, Inc. | Solid electrolyte compositions for electrochemical cells |
US20210057710A1 (en) * | 2018-04-27 | 2021-02-25 | Panasonic Intellectual Property Management Co., Ltd. | Nonaqueous electrolyte secondary battery |
WO2021166359A1 (ja) * | 2020-02-19 | 2021-08-26 | Jfeケミカル株式会社 | リチウムイオン二次電池の負極用炭素材料およびその製造方法並びにそれを用いた負極およびリチウムイオン二次電池 |
EP3968416A4 (en) | 2020-06-04 | 2022-11-02 | Ningde Amperex Technology Ltd. | NEGATIVE ELECTRODE ACTIVE MATERIAL AND ELECTROCHEMICAL DEVICE AND ELECTRONIC DEVICE WITH THE NEGATIVE ELECTRODE ACTIVE MATERIAL |
Family Cites Families (20)
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US3812240A (en) * | 1970-04-06 | 1974-05-21 | Great Lakes Carbon Corp | Production of highly ordered graphite particles |
US3938880A (en) * | 1974-05-28 | 1976-02-17 | Xerox Corporation | Spherulitic liquid crystalline texture |
JPS5527817A (en) * | 1978-08-11 | 1980-02-28 | Kureha Chem Ind Co Ltd | Manufacture of spherical carbon or spherical activated carbon |
DE3215126A1 (de) * | 1982-04-23 | 1983-10-27 | Robert Bosch Gmbh, 7000 Stuttgart | Speicherelement fuer elektrische energie |
US4702977A (en) * | 1985-04-30 | 1987-10-27 | Toshiba Battery Co., Ltd. | Secondary battery using non-aqueous solvent |
EP0205856B1 (en) * | 1985-05-10 | 1991-07-17 | Asahi Kasei Kogyo Kabushiki Kaisha | Secondary battery |
DE3610375A1 (de) * | 1986-03-27 | 1987-10-01 | Ruetgerswerke Ag | Verfahren zur herstellung eines kohlenstoffaser-vorprodukts und daraus hergestellte kohlenstoffasern |
JP2674793B2 (ja) * | 1988-08-31 | 1997-11-12 | ソニー 株式会社 | 非水電解液電池 |
JP3191394B2 (ja) * | 1992-04-10 | 2001-07-23 | 松下電器産業株式会社 | 非水二次電池とその負極板の製造法 |
US5753387A (en) * | 1995-11-24 | 1998-05-19 | Kabushiki Kaisha Toshiba | Lithium secondary battery |
JP3541913B2 (ja) * | 1996-11-27 | 2004-07-14 | 株式会社デンソー | 非水電解液二次電池 |
JP4734684B2 (ja) * | 1998-10-22 | 2011-07-27 | 株式会社豊田中央研究所 | リチウム二次電池用正極活物質、その製造方法、それを用いたリチウム二次電池およびその二次電池のエージング処理方法 |
JP2000223121A (ja) * | 1999-01-27 | 2000-08-11 | Tdk Corp | 炭素材料およびその製造方法 |
KR100567112B1 (ko) * | 2002-07-08 | 2006-03-31 | 마쯔시다덴기산교 가부시키가이샤 | 음극 및 그것을 사용한 리튬이온이차전지 |
JP2005044775A (ja) * | 2003-01-22 | 2005-02-17 | Hitachi Maxell Ltd | リチウム二次電池用負極とその製造方法およびそれを用いたリチウム二次電池 |
JP4354723B2 (ja) * | 2003-03-31 | 2009-10-28 | Jfeケミカル株式会社 | 黒鉛質粒子の製造方法 |
JP4530845B2 (ja) * | 2004-12-28 | 2010-08-25 | 三洋電機株式会社 | 非水電解質二次電池及びその充電方法 |
CN100350654C (zh) * | 2005-04-20 | 2007-11-21 | 深圳市贝特瑞电子材料有限公司 | 锂离子电池负极材料及其制备方法 |
JP4297133B2 (ja) * | 2006-05-15 | 2009-07-15 | ソニー株式会社 | リチウムイオン電池 |
JP5021979B2 (ja) * | 2006-08-17 | 2012-09-12 | Jfeケミカル株式会社 | リチウムイオン二次電池負極材料用メソカーボン小球体黒鉛化物およびその製造方法、リチウムイオン二次電池負極材料、リチウムイオン二次電池負極ならびにリチウムイオン二次電池 |
-
2008
- 2008-01-10 JP JP2008003541A patent/JP5262119B2/ja active Active
- 2008-12-16 TW TW097148961A patent/TWI389375B/zh not_active IP Right Cessation
-
2009
- 2009-01-07 SG SG200900072-0A patent/SG154394A1/en unknown
- 2009-01-09 CN CN2009100001450A patent/CN101481109B/zh active Active
- 2009-01-09 US US12/351,387 patent/US20090191462A1/en not_active Abandoned
- 2009-01-09 KR KR1020090001786A patent/KR20090077717A/ko not_active Application Discontinuation
-
2012
- 2012-04-18 US US13/449,918 patent/US20120202115A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
US20090191462A1 (en) | 2009-07-30 |
TWI389375B (zh) | 2013-03-11 |
CN101481109A (zh) | 2009-07-15 |
US20120202115A1 (en) | 2012-08-09 |
SG154394A1 (en) | 2009-08-28 |
JP2009170109A (ja) | 2009-07-30 |
KR20090077717A (ko) | 2009-07-15 |
TW200937706A (en) | 2009-09-01 |
CN101481109B (zh) | 2013-12-11 |
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