JP2019192653A5 - - Google Patents
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- JP2019192653A5 JP2019192653A5 JP2019145138A JP2019145138A JP2019192653A5 JP 2019192653 A5 JP2019192653 A5 JP 2019192653A5 JP 2019145138 A JP2019145138 A JP 2019145138A JP 2019145138 A JP2019145138 A JP 2019145138A JP 2019192653 A5 JP2019192653 A5 JP 2019192653A5
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- Prior art keywords
- negative electrode
- ion battery
- lithium ion
- indium
- lithium
- Prior art date
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- 229910001416 lithium ion Inorganic materials 0.000 claims description 37
- 239000000463 material Substances 0.000 claims description 36
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium Ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 claims description 34
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 claims description 32
- 229910052738 indium Inorganic materials 0.000 claims description 32
- 239000007773 negative electrode material Substances 0.000 claims description 27
- 239000003575 carbonaceous material Substances 0.000 claims description 19
- 239000002245 particle Substances 0.000 claims description 12
- 239000003792 electrolyte Substances 0.000 claims description 6
- 239000007784 solid electrolyte Substances 0.000 claims description 6
- 239000011888 foil Substances 0.000 claims description 2
- 239000007770 graphite material Substances 0.000 claims description 2
- 229910021385 hard carbon Inorganic materials 0.000 claims description 2
- 239000007774 positive electrode material Substances 0.000 claims description 2
- 229910021384 soft carbon Inorganic materials 0.000 claims description 2
- 150000003568 thioethers Chemical class 0.000 claims description 2
- 238000000691 measurement method Methods 0.000 claims 2
- 239000011347 resin Substances 0.000 claims 2
- 229920005989 resin Polymers 0.000 claims 2
- 239000010405 anode material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 1
- 238000006011 modification reaction Methods 0.000 description 1
Description
すなわち、本発明によれば、
負極材料により構成された負極活物質層を備えるリチウムイオン電池用負極であって、
前記負極材料は、リチウムイオンを吸蔵・放出するインジウム材料と、粒子状の炭素質材料と、を含み、
前記インジウム材料の質量（Ｗ１）と前記炭素質材料の質量（Ｗ２）との合計質量（Ｗ１＋Ｗ２）に対する前記炭素質材料の質量（Ｗ２）の比（Ｗ２／（Ｗ１＋Ｗ２））が０．０５以上０．５５以下であり、
前記負極活物質層は固体電解質材料を含まないリチウムイオン電池用負極が提供される。
That is, according to the present invention,
A negative electrode for a lithium-ion battery comprising a negative electrode active material layer constituted by a negative electrode material,
The negative electrode material includes an indium material that occludes and releases lithium ions, and a particulate carbonaceous material,
The ratio (W 2 / (W 1 ) of the mass (W 2 ) of the carbonaceous material to the total mass (W 1 + W 2 ) of the mass (W 1 ) of the indium material and the mass (W 2 ) of the carbonaceous material. + W 2)) is Ri der 0.05 to 0.55,
The negative electrode active material layer includes a negative electrode for a lithium ion battery that does not include a solid electrolyte material .
以上、本発明の実施形態について述べたが、これらは本発明の例示であり、上記以外の様々な構成を採用することもできる。
なお、本発明は前述の実施形態に限定されるものではなく、本発明の目的を達成できる範囲での変形、改良等は本発明に含まれるものである。
以下、参考形態の例を付記する。
１．
リチウムイオン電池の負極に用いられる負極材料であって、
リチウムイオンを吸蔵・放出するインジウム材料と、粒子状の炭素質材料と、を含み、
前記インジウム材料の質量（Ｗ １ ）と前記炭素質材料の質量（Ｗ ２ ）との合計質量（Ｗ １ ＋Ｗ ２ ）に対する前記炭素質材料の質量（Ｗ ２ ）の比（Ｗ ２ ／（Ｗ １ ＋Ｗ ２ ））が０．０５以上０．５５以下である負極材料。
２．
１．に記載の負極材料において、
前記インジウム材料が箔状または膜状であり、
前記インジウム材料の少なくとも一方の面に前記炭素質材料が付着または複合している負極材料。
３．
２．に記載の負極材料において、
前記インジウム材料の電解質層と接する面とは反対側の面に前記炭素質材料が付着または複合している負極材料。
４．
２．または３．に記載の負極材料において、
前記インジウム材料の厚みが１μｍ以上５００μｍ以下である負極材料。
５．
２．乃至４．いずれか一つに記載の負極材料において、
前記インジウム材料が箔状または膜状の第一インジウム材料と箔状または膜状の第二インジウム材料により構成され、かつ、前記第一インジウム材料と前記第二インジウム材料がこの順番で積層されており、
前記第一インジウム材料と前記第二インジウム材料との間に前記炭素質材料が複合している負極材料。
６．
１．に記載の負極材料において、
前記インジウム材料が粒子状である負極材料。
７．
６．に記載の負極材料において、
レーザー回折散乱式粒度分布測定法による重量基準粒度分布における前記インジウム材料の平均粒子径ｄ ５０ が１μｍ以上１００μｍ以下である負極材料。
８．
１．乃至７．いずれか一つに記載の負極材料において、
レーザー回折散乱式粒度分布測定法による重量基準粒度分布における前記炭素質材料の平均粒子径ｄ ５０ が０．１μｍ以上５０μｍ以下である負極材料。
９．
１．乃至８．いずれか一つに記載の負極材料において、
前記炭素質材料が黒鉛質材料、ハードカーボン、およびソフトカーボンから選択される一種または二種以上を含む負極材料。
１０．
１．乃至９．いずれか一つに記載の負極材料により構成された負極活物質層を備えるリチウムイオン電池用負極。
１１．
１０．に記載の負極と、電解質層と、正極とを備えるリチウムイオン電池。
１２．
１１．に記載の電池において、
前記正極が硫化物系正極活物質を含むリチウムイオン電池。
１３．
１１．または１２．に記載の電池において、
前記電解質層が固体電解質材料を含む固体電解質層であるリチウムイオン電池。
１４．
１３．に記載の電池において、
全固体型リチウムイオン電池であるリチウムイオン電池。
As mentioned above, although embodiment of this invention was described, these are illustrations of this invention and various structures other than the above are also employable.
It should be noted that the present invention is not limited to the above-described embodiments, and modifications, improvements, and the like within the scope that can achieve the object of the present invention are included in the present invention.
Hereinafter, examples of the reference form will be added.
1.
A negative electrode material used for a negative electrode of a lithium ion battery,
An indium material that occludes and releases lithium ions, and a particulate carbonaceous material,
The ratio (W 2 / (W 1 ) of the mass (W 2 ) of the carbonaceous material to the total mass (W 1 + W 2 ) of the mass (W 1 ) of the indium material and the mass (W 2 ) of the carbonaceous material. A negative electrode material having + W 2 )) of 0.05 or more and 0.55 or less.
2.
1. In the negative electrode material described in
The indium material is foil or film,
A negative electrode material in which the carbonaceous material is adhered or combined on at least one surface of the indium material.
3.
2. In the negative electrode material described in
A negative electrode material in which the carbonaceous material is adhered or combined on the surface opposite to the surface in contact with the electrolyte layer of the indium material.
4).
2. Or 3. In the negative electrode material described in
The negative electrode material whose thickness of the said indium material is 1 micrometer or more and 500 micrometers or less.
5.
2. To 4. In the negative electrode material according to any one of the above,
The indium material is composed of a foil-like or film-like first indium material and a foil-like or film-like second indium material, and the first indium material and the second indium material are laminated in this order. ,
A negative electrode material in which the carbonaceous material is composited between the first indium material and the second indium material.
6).
1. In the negative electrode material described in
A negative electrode material in which the indium material is particulate.
7).
6). In the negative electrode material described in
Anode material the average particle size d 50 of indium material in weight particle size distribution by a laser diffraction scattering particle size distribution measuring method is 1μm or 100μm or less.
8).
1. To 7. In the negative electrode material according to any one of the above,
Anode material the average particle size d 50 of the carbonaceous material in the weight particle size distribution by a laser diffraction scattering particle size distribution measuring method is 0.1μm or 50μm or less.
9.
1. To 8. In the negative electrode material according to any one of the above,
The negative electrode material in which the said carbonaceous material contains the 1 type (s) or 2 or more types selected from graphite material, a hard carbon, and a soft carbon.
10.
1. Thru 9. The negative electrode for lithium ion batteries provided with the negative electrode active material layer comprised with the negative electrode material as described in any one.
11.
10. A lithium ion battery comprising the negative electrode described in 1 above, an electrolyte layer, and a positive electrode.
12
11. In the battery described in
A lithium ion battery in which the positive electrode includes a sulfide-based positive electrode active material.
13.
11. Or 12. In the battery described in
A lithium ion battery, wherein the electrolyte layer is a solid electrolyte layer containing a solid electrolyte material.
14
13. In the battery described in
A lithium-ion battery that is an all-solid-state lithium-ion battery.
Claims (14)
前記負極材料は、リチウムイオンを吸蔵・放出するインジウム材料と、粒子状の炭素質材料と、を含み、
前記インジウム材料の質量（Ｗ１）と前記炭素質材料の質量（Ｗ２）との合計質量（Ｗ１＋Ｗ２）に対する前記炭素質材料の質量（Ｗ２）の比（Ｗ２／（Ｗ１＋Ｗ２））が０．０５以上０．５５以下であり、
前記負極活物質層は固体電解質材料を含まないリチウムイオン電池用負極。 A negative electrode for a lithium-ion battery comprising a negative electrode active material layer constituted by a negative electrode material,
The negative electrode material includes an indium material that occludes and releases lithium ions, and a particulate carbonaceous material,
The ratio (W 2 / (W 1 ) of the mass (W 2 ) of the carbonaceous material to the total mass (W 1 + W 2 ) of the mass (W 1 ) of the indium material and the mass (W 2 ) of the carbonaceous material. + W 2)) is Ri der 0.05 to 0.55,
The negative electrode active material layer is a negative electrode for a lithium ion battery that does not contain a solid electrolyte material .
前記インジウム材料が箔状または膜状であり、
前記インジウム材料の少なくとも一方の面に前記炭素質材料が付着または複合しているリチウムイオン電池用負極。 The negative electrode for a lithium ion battery according to claim 1,
The indium material is foil or film,
A negative electrode for a lithium ion battery , wherein the carbonaceous material is adhered or combined on at least one surface of the indium material.
前記インジウム材料の電解質層と接する面とは反対側の面に前記炭素質材料が付着または複合しているリチウムイオン電池用負極。 The negative electrode for a lithium ion battery according to claim 2,
A negative electrode for a lithium ion battery , wherein the carbonaceous material is adhered or combined on a surface opposite to a surface in contact with the electrolyte layer of the indium material.
前記インジウム材料の厚みが１μｍ以上５００μｍ以下であるリチウムイオン電池用負極。 The negative electrode for a lithium ion battery according to claim 2 or 3,
The negative electrode for lithium ion batteries whose thickness of the said indium material is 1 micrometer or more and 500 micrometers or less.
前記インジウム材料が箔状または膜状の第一インジウム材料と箔状または膜状の第二インジウム材料により構成され、かつ、前記第一インジウム材料と前記第二インジウム材料がこの順番で積層されており、
前記第一インジウム材料と前記第二インジウム材料との間に前記炭素質材料が複合しているリチウムイオン電池用負極。 The negative electrode for a lithium ion battery according to any one of claims 2 to 4,
The indium material is composed of a foil-like or film-like first indium material and a foil-like or film-like second indium material, and the first indium material and the second indium material are laminated in this order. ,
A negative electrode for a lithium ion battery , wherein the carbonaceous material is composited between the first indium material and the second indium material.
前記インジウム材料が粒子状であるリチウムイオン電池用負極。 The negative electrode for a lithium ion battery according to claim 1,
A negative electrode for a lithium ion battery , wherein the indium material is particulate.
レーザー回折散乱式粒度分布測定法による重量基準粒度分布における前記インジウム材料の平均粒子径ｄ５０が１μｍ以上１００μｍ以下であるリチウムイオン電池用負極。 The negative electrode for a lithium ion battery according to claim 6,
A negative electrode for a lithium ion battery, wherein an average particle diameter d 50 of the indium material in a weight-based particle size distribution measured by a laser diffraction / scattering particle size distribution measurement method is 1 μm or more and 100 μm or less.
レーザー回折散乱式粒度分布測定法による重量基準粒度分布における前記炭素質材料の平均粒子径ｄ５０が０．１μｍ以上５０μｍ以下であるリチウムイオン電池用負極。 The negative electrode for a lithium ion battery according to any one of claims 1 to 7,
Laser diffraction scattering particle size distribution measurement method wherein the average particle diameter d 50 of the negative electrode for a lithium-ion battery is 0.1μm or more 50μm or less of the carbonaceous material in the weight particle size distribution by.
前記炭素質材料が黒鉛質材料、ハードカーボン、およびソフトカーボンから選択される一種または二種以上を含むリチウムイオン電池用負極。 The negative electrode for a lithium ion battery according to any one of claims 1 to 8,
A negative electrode for a lithium ion battery, wherein the carbonaceous material includes one or more selected from graphite materials, hard carbon, and soft carbon.
負極集電体および導電性樹脂層をさらに備え、前記前記負極活物質層と前記負極集電体との間に前記導電性樹脂層が位置するリチウムイオン電池用負極。 A negative electrode for a lithium ion battery, further comprising a negative electrode current collector and a conductive resin layer, wherein the conductive resin layer is located between the negative electrode active material layer and the negative electrode current collector.
前記正極が硫化物系正極活物質を含むリチウムイオン電池。 The battery according to claim 11,
The lithium ion battery in which the said positive electrode contains a sulfide type positive electrode active material.
前記電解質層が固体電解質材料を含む固体電解質層であるリチウムイオン電池。 The battery according to claim 11 or 12,
A lithium ion battery, wherein the electrolyte layer is a solid electrolyte layer containing a solid electrolyte material.
全固体型リチウムイオン電池であるリチウムイオン電池。 The battery according to claim 13.
A lithium-ion battery that is an all-solid-state lithium-ion battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2019145138A JP6865796B2 (en) | 2019-08-07 | 2019-08-07 | Negative electrode material, negative electrode for lithium-ion batteries, and lithium-ion batteries |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2019145138A JP6865796B2 (en) | 2019-08-07 | 2019-08-07 | Negative electrode material, negative electrode for lithium-ion batteries, and lithium-ion batteries |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2015052950A Division JP6570849B2 (en) | 2015-03-17 | 2015-03-17 | Negative electrode material, negative electrode for lithium ion battery, and lithium ion battery |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2019192653A JP2019192653A (en) | 2019-10-31 |
| JP2019192653A5 true JP2019192653A5 (en) | 2019-12-12 |
| JP6865796B2 JP6865796B2 (en) | 2021-04-28 |
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| JP2019145138A Active JP6865796B2 (en) | 2019-08-07 | 2019-08-07 | Negative electrode material, negative electrode for lithium-ion batteries, and lithium-ion batteries |
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| JP (1) | JP6865796B2 (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1092414A (en) * | 1996-09-11 | 1998-04-10 | Matsushita Denchi Kogyo Kk | Nonaqueous electrolyte secondary battery |
| JP4944341B2 (en) * | 2002-02-26 | 2012-05-30 | 日本電気株式会社 | Method for producing negative electrode for lithium ion secondary battery |
| JP2006196247A (en) * | 2005-01-12 | 2006-07-27 | Matsushita Electric Ind Co Ltd | Negative electrode for lithium secondary battery and lithium secondary battery |
| JP2009093968A (en) * | 2007-10-10 | 2009-04-30 | Seiko Epson Corp | Whole-solid lithium secondary battery |
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