JP2014500579A - Si系負極材料 - Google Patents
Si系負極材料 Download PDFInfo
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- JP2014500579A JP2014500579A JP2013535429A JP2013535429A JP2014500579A JP 2014500579 A JP2014500579 A JP 2014500579A JP 2013535429 A JP2013535429 A JP 2013535429A JP 2013535429 A JP2013535429 A JP 2013535429A JP 2014500579 A JP2014500579 A JP 2014500579A
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- 239000007773 negative electrode material Substances 0.000 title claims abstract description 12
- 239000000203 mixture Substances 0.000 claims abstract description 33
- 239000000843 powder Substances 0.000 claims abstract description 31
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 23
- 239000000956 alloy Substances 0.000 claims abstract description 23
- 239000011149 active material Substances 0.000 claims abstract description 21
- 238000000034 method Methods 0.000 claims abstract description 15
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229910001416 lithium ion Inorganic materials 0.000 claims abstract description 9
- 229910052742 iron Inorganic materials 0.000 claims abstract description 7
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 6
- 230000001590 oxidative effect Effects 0.000 claims abstract description 3
- 238000000227 grinding Methods 0.000 claims description 19
- 229910052718 tin Inorganic materials 0.000 claims description 18
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 16
- 229910052799 carbon Inorganic materials 0.000 claims description 11
- 229910052759 nickel Inorganic materials 0.000 claims description 11
- 229910052786 argon Inorganic materials 0.000 claims description 9
- 239000007789 gas Substances 0.000 claims description 9
- 239000006229 carbon black Substances 0.000 claims description 6
- 150000001875 compounds Chemical class 0.000 claims description 6
- 229910002804 graphite Inorganic materials 0.000 claims description 5
- 239000010439 graphite Substances 0.000 claims description 5
- 229910052719 titanium Inorganic materials 0.000 claims description 5
- 229910006414 SnNi Inorganic materials 0.000 claims description 4
- 230000001681 protective effect Effects 0.000 claims description 3
- 229910001069 Ti alloy Inorganic materials 0.000 claims description 2
- 230000008569 process Effects 0.000 abstract description 6
- 238000002360 preparation method Methods 0.000 abstract description 2
- 238000003801 milling Methods 0.000 abstract 1
- 239000011135 tin Substances 0.000 description 39
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 37
- 239000010936 titanium Substances 0.000 description 21
- 229910052710 silicon Inorganic materials 0.000 description 16
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 15
- 239000010703 silicon Substances 0.000 description 15
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 13
- 230000000052 comparative effect Effects 0.000 description 11
- 229910052744 lithium Inorganic materials 0.000 description 11
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 10
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 10
- 230000003647 oxidation Effects 0.000 description 10
- 238000007254 oxidation reaction Methods 0.000 description 10
- 239000002245 particle Substances 0.000 description 10
- 239000011230 binding agent Substances 0.000 description 9
- 238000012423 maintenance Methods 0.000 description 7
- 239000003792 electrolyte Substances 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 238000010298 pulverizing process Methods 0.000 description 6
- 230000003750 conditioning effect Effects 0.000 description 5
- 230000002441 reversible effect Effects 0.000 description 5
- 239000011863 silicon-based powder Substances 0.000 description 5
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 4
- 229910002091 carbon monoxide Inorganic materials 0.000 description 4
- 239000011651 chromium Substances 0.000 description 4
- 239000002131 composite material Substances 0.000 description 4
- 238000006138 lithiation reaction Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 238000002441 X-ray diffraction Methods 0.000 description 3
- 238000005275 alloying Methods 0.000 description 3
- 238000010316 high energy milling Methods 0.000 description 3
- 229910052752 metalloid Inorganic materials 0.000 description 3
- 150000002738 metalloids Chemical class 0.000 description 3
- 150000002739 metals Chemical class 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 230000002829 reductive effect Effects 0.000 description 3
- 239000002000 Electrolyte additive Substances 0.000 description 2
- 229910018077 Li 15 Si 4 Inorganic materials 0.000 description 2
- 230000002411 adverse Effects 0.000 description 2
- 229910000905 alloy phase Inorganic materials 0.000 description 2
- 239000006183 anode active material Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 239000002482 conductive additive Substances 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 229910001092 metal group alloy Inorganic materials 0.000 description 2
- 239000011255 nonaqueous electrolyte Substances 0.000 description 2
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 2
- 229910010271 silicon carbide Inorganic materials 0.000 description 2
- 229910052723 transition metal Inorganic materials 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 229910019043 CoSn Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 208000032953 Device battery issue Diseases 0.000 description 1
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 1
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- 229910006739 Si—Sn—Ni—Al—C Inorganic materials 0.000 description 1
- 229910006720 Si—Sn—Ni—C Inorganic materials 0.000 description 1
- 229910006719 Si—Sn—Ni—Ti—C Inorganic materials 0.000 description 1
- 229910001128 Sn alloy Inorganic materials 0.000 description 1
- 229920002125 Sokalan® Polymers 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000010405 anode material Substances 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 229910021383 artificial graphite Inorganic materials 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 125000005587 carbonate group Chemical group 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 235000010980 cellulose Nutrition 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 230000001143 conditioned effect Effects 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000011889 copper foil Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 229910021419 crystalline silicon Inorganic materials 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000009831 deintercalation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011038 discontinuous diafiltration by volume reduction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000003966 growth inhibitor Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009830 intercalation Methods 0.000 description 1
- 230000002687 intercalation Effects 0.000 description 1
- 229910000765 intermetallic Inorganic materials 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 229910021382 natural graphite Inorganic materials 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- -1 polytetrafluoroethylenes Polymers 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007784 solid electrolyte Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
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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
- H01M4/38—Selection of substances as active materials, active masses, active liquids of elements or alloys
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/04—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/05—Metallic powder characterised by the size or surface area of the particles
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G53/00—Compounds of nickel
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C13/00—Alloys based on tin
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C19/00—Alloys based on nickel or cobalt
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C19/00—Alloys based on nickel or cobalt
- C22C19/07—Alloys based on nickel or cobalt based on cobalt
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
- H01B1/06—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of other non-metallic substances
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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
- 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
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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
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- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
- H01M4/134—Electrodes based on metals, Si or alloys
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- 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
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Abstract
Description
−組成SiaSnbNicTiyMmCzの元素粉末および/または元素の合金粉末の混合物を提供するステップと、
−粉末混合物の非酸化性条件下で、高エネルギー粉砕を行うステップとを含む方法を提供することができる。一実施形態においては、組成はSiaSnbNicMyCzであり、M=Tiである。
、およびzは原子パーセント値を表す(a+b+c+y+m+z=100である))で表されるリチウムイオンアノード材料の負極活物質を説明する。一実施形態においては、Mは鉄、クロム、およびコバルトからなる群から選択される1種類またはそれ以上の元素である。これらの元素は、典型的には粉砕作業後に合金中の不純物として検出される。また、a>0、b>0、z>0、y≧0、0≦m≦1、c>5、z+0.5×b>a、およびc+y>0.75×bである。
えられることで、すべてのスズと結合してスズ相のサイクル性を最適化する金属間相が形成される。一実施形態においては、原子パーセント値の合計c+yは0.75×bよりも大きい。また、別の一実施形態においては、粉砕ステップ中のスズ相および炭素の総量は、活性アノード粉末の導電性マトリックス中のケイ素の膨張に対応するのに十分な量であり;これは条件z+0.5×b>aまたはz>aのいずれかが満たされる場合に得られる。
Ni3Sn4粉末、Si粉末、Al粉末、および炭素(C−Nergy65、Timcal)を横型アトライター(ZOZ,WendenのSimoloyer(登録商標)cm01)中で粉砕した。酸化を防止するため、粉砕はアルゴンガス雰囲気下で行った。組成およびプロセス条件を表1に示す。組成パラメーターの値a、b、c、y(ここで、一般式中のTiはAlで置き換えられている)、およびzを表8に示す。
Ni3Sn4粉末、Si粉末、およびカーボンブラックを横型アトライター(ZOZ,WendenのSimoloyer(登録商標)cm01)中で1400rpmにおいて8時間粉砕した。酸化を防止するため、粉砕はアルゴンガス雰囲気下で行った。組成およびプロセス条件を表2に示す。組成パラメーターの値a、b、c、およびzを表8に示す。
例1よりも優れていた。
Ni3Sn4粉末、Si粉末、Ti粉末、およびカーボンブラックを横型アトライター(ZOZ,WendenのSimoloyer(登録商標)cm01)中で1400rpmにおいて8時間粉砕した。酸化を防止するために、粉砕はアルゴンガス雰囲気下で行った。組成およびプロセス条件を表4に示す。組成パラメーターの値a、b、c、y、およびzを表8に示す。
Ni3Sn4粉末、Si粉末、Ti粉末、およびカーボンブラックを横型アトライター(ZOZ,WendenのSimoloyer(登録商標)cm01)中で1400rpmにおいて8時間粉砕した。酸化を防止するために、粉砕はアルゴンガス雰囲気下で行った。組成およびプロセス条件を表5に示す。組成パラメーターの値a、b、c、y、およびzを表8に示す。
イン電池の作製を行った。電気化学的結果を図4に示す。サイクル中の容量の維持は、比較例1および実施例2よりも優れていた。
Ni3Sn4粉末、Si粉末、Ti粉末、およびカーボンブラックを横型アトライター(ZOZ,WendenのSimoloyer(登録商標)cm01)中で1400rpmにおいて8時間粉砕した。酸化を防止するために、粉砕はアルゴンガス雰囲気下で行った。組成およびプロセス条件を表6に示す。組成パラメーターの値a、b、c、y、およびzを表8に示す。
Claims (10)
- 組成式SiaSnbNicTiyMmCz(式中、a、b、c、y、m、およびzは原子%値を表し、Mは、Fe、Cr、およびCo以上の1種類であり、a>0、b>0、z>0、y≧0、0≦m≦1、c>5、z+0.5×b>a、およびc+y>0.75×bである)で表される、リチウムイオン電池用負極活物質。
- 0<a≦45である、請求項1に記載の活物質。
- yが3乃至12at%の間である、請求項1または請求項2に記載の活物質。
- −前記組成SiaSnbNicTiyMmCzの元素粉末および/または合金粉末の混合物を提供するステップと、
−非酸化性条件下で前記粉末混合物の高エネルギー粉砕を行うステップと
を含む、請求項1乃至請求項3のいずれか一項に記載の負極活物質の調製方法。 - Ar、N2、CO、およびCO2のうちの1種類またはそれ以上を含むガス、好ましくはAr、N2、CO、およびCO2のうちの1種類またはそれ以上からなるガスの保護雰囲気中で前記高エネルギー粉砕が行われる、請求項4に記載の方法。
- 前記高エネルギー粉砕が、横型または縦型のいずれかのアトライター中で行われる、請求項4または請求項5に記載の方法。
- SnおよびNiが、アトマイズSnNi合金、好ましくはアトマイズ脆性SnNi合金、およびNi3Sn4化合物、好ましくはアトマイズNi3Sn4化合物のうちの1種類またはそれ以上として提供される、請求項4乃至請求項6のいずれか一項に記載の方法。
- Sn、Ti、およびNiが、アトマイズNi3Sn4−Ti合金として提供される、請求項4乃至請求項6のいずれか一項に記載の方法。
- Cがカーボンブラックとして提供される、請求項4乃至請求項8のいずれか一項に記載の方法。
- 黒鉛または導電性炭素を高エネルギー粉砕した混合物に加えるステップをさらに含む、請求項4乃至請求項9のいずれか一項に記載の方法。
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US40811810P | 2010-10-29 | 2010-10-29 | |
US61/408,118 | 2010-10-29 | ||
EP10015716 | 2010-12-16 | ||
EP10015716.3 | 2010-12-16 | ||
PCT/EP2011/068828 WO2012055948A1 (en) | 2010-10-29 | 2011-10-27 | Si based negative electrode material |
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JP5696863B2 JP5696863B2 (ja) | 2015-04-08 |
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US (1) | US9054381B2 (ja) |
EP (1) | EP2633576B9 (ja) |
JP (1) | JP5696863B2 (ja) |
KR (1) | KR101482478B1 (ja) |
CN (1) | CN103329316B (ja) |
CA (1) | CA2815163C (ja) |
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JP2016131072A (ja) * | 2015-01-13 | 2016-07-21 | 新日鐵住金株式会社 | 非水電解質二次電池用負極材料の製造方法 |
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KR102234287B1 (ko) * | 2014-08-08 | 2021-03-31 | 삼성에스디아이 주식회사 | 음극 활물질, 이를 채용한 음극과 리튬 전지, 및 상기 음극 활물질의 제조방법 |
KR101859347B1 (ko) * | 2014-12-17 | 2018-05-18 | 닛산 지도우샤 가부시키가이샤 | 리튬 이온 이차 전지용 부극 활물질, 리튬 이온 이차 전지용 부극 및 리튬 이온 이차 전지 |
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EP2633576A1 (en) | 2013-09-04 |
US20130234074A1 (en) | 2013-09-12 |
TWI446613B (zh) | 2014-07-21 |
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US9054381B2 (en) | 2015-06-09 |
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