JP2018056435A5 - - Google Patents
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- JP2018056435A5 JP2018056435A5 JP2016192669A JP2016192669A JP2018056435A5 JP 2018056435 A5 JP2018056435 A5 JP 2018056435A5 JP 2016192669 A JP2016192669 A JP 2016192669A JP 2016192669 A JP2016192669 A JP 2016192669A JP 2018056435 A5 JP2018056435 A5 JP 2018056435A5
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- JP
- Japan
- Prior art keywords
- positive electrode
- storage element
- active material
- electrode active
- aqueous
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- WHXSMMKQMYFTQS-UHFFFAOYSA-N lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims 13
- 229910052744 lithium Inorganic materials 0.000 claims 13
- 239000007774 positive electrode material Substances 0.000 claims 11
- 239000012528 membrane Substances 0.000 claims 10
- 150000002642 lithium compounds Chemical class 0.000 claims 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims 4
- 229910001416 lithium ion Inorganic materials 0.000 claims 3
- 239000011255 nonaqueous electrolyte Substances 0.000 claims 3
- 239000000243 solution Substances 0.000 claims 3
- 239000002245 particle Substances 0.000 claims 2
- 239000011148 porous material Substances 0.000 claims 2
- 239000011230 binding agent Substances 0.000 claims 1
- 239000011256 inorganic filler Substances 0.000 claims 1
- 229910003475 inorganic filler Inorganic materials 0.000 claims 1
- 229920000098 polyolefin Polymers 0.000 claims 1
- 239000011347 resin Substances 0.000 claims 1
- 229920005989 resin Polymers 0.000 claims 1
Claims (9)
前記正極が、正極集電体と、前記正極集電体の片面又は両面上に設けられた、正極活物質を含む正極活物質層とを有し、前記正極活物質は活性炭を含み、
前記リチウム化合物の平均粒子径をＸ１とするとき、０．１μｍ≦Ｘ１≦１０μｍであり、正極活物質の平均粒子径をＹ１とするとき、２μｍ≦Ｙ１≦２０μｍであり、Ｘ１＜Ｙ１であり、前記正極中に含まれるリチウム化合物の量が、正極活物質層の全質量を基準として１質量％以上５０質量％以下であり、
前記セパレータは、多孔膜及び前記多孔膜の少なくとも片面に形成された絶縁多孔層を含み、かつ前記多孔膜の厚みに対する前記絶縁多孔層の厚みの割合が２０％〜１２５％である、非水系リチウム型蓄電素子。 A non-aqueous lithium storage element having a positive electrode containing a lithium compound other than the positive electrode active material, a negative electrode, a separator, and a non-aqueous electrolyte solution containing lithium ions,
The positive electrode has a positive electrode current collector, and a positive electrode active material layer including a positive electrode active material provided on one or both surfaces of the positive electrode current collector, the positive electrode active material includes activated carbon,
When the average particle diameter of the lithium compound is X 1 , 0.1 μm ≦ X 1 ≦ 10 μm, and when the average particle diameter of the positive electrode active material is Y 1 , 2 μm ≦ Y 1 ≦ 20 μm and X 1 <a Y 1, the amount of lithium compound contained in the positive electrode is not more than 50 wt% or more 1 wt% based on the total weight of the positive electrode active material layer as a reference,
The separator includes a porous membrane and an insulating porous layer formed on at least one surface of the porous membrane, and the ratio of the thickness of the insulating porous layer to the thickness of the porous membrane is 20% to 125%. Type storage element.
前記正極は、正極集電体と、前記正極集電体の片面又は両面上に設けられた、正極活物質を含む正極活物質層とを有し、前記正極活物質は、活性炭を含み、
前記セパレータは、多孔膜及び前記多孔膜の少なくとも片面に形成された絶縁多孔層を含み、かつ前記多孔膜の厚みに対する前記絶縁多孔層の厚みの割合が２０％〜１２５％であり、
前記非水系リチウム型蓄電素子において、初期の常温放電内部抵抗をＲａ（Ω）、初期の常温充電内部抵抗をＲｆ（Ω）、静電容量をＦ（Ｆ）としたとき、
以下の（ａ）、（ｂ）：
（ａ）ＲａとＦとの積Ｒａ・Ｆが０．３以上３．０以下である；
（ｂ）Ｒｆ／Ｒａが０．５以上１．５以下である；
を満たす、非水系リチウム型蓄電素子。 A non-aqueous lithium storage element having a positive electrode containing a lithium compound other than the positive electrode active material, a negative electrode, a separator, and a non-aqueous electrolyte solution containing lithium ions,
The positive electrode includes a positive electrode current collector, and a positive electrode active material layer including a positive electrode active material provided on one or both surfaces of the positive electrode current collector, the positive electrode active material includes activated carbon,
The separator includes a porous membrane and an insulating porous layer formed on at least one surface of the porous membrane, and the ratio of the thickness of the insulating porous layer to the thickness of the porous membrane is 20% to 125%,
In the non-aqueous lithium storage element, when the initial room temperature discharge internal resistance is Ra (Ω), the initial room temperature charge internal resistance is Rf (Ω), and the capacitance is F (F),
The following (a), (b):
(A) The product Ra · F of Ra and F is 0.3 or more and 3.0 or less;
(B) Rf / Ra is 0.5 or more and 1.5 or less;
A non-aqueous lithium storage element that satisfies the above requirements.
前記セパレータは、多孔膜及び前記多孔膜の少なくとも片面に形成された絶縁多孔層を含み、かつ前記多孔膜の厚みに対する前記絶縁多孔層の厚みの割合が２０％〜１２５％であり、
前記非水系リチウム型蓄電素子の初期の常温放電内部抵抗をＲａ（Ω）、セル電圧４Ｖ及び環境温度６０℃において２か月間保存した後の２５℃における内部抵抗をＲｂ（Ω）としたとき、Ｒｂ／Ｒａが３．０以下である、非水系リチウム型蓄電素子。 A non-aqueous lithium storage element having a positive electrode containing a lithium compound other than the positive electrode active material, a negative electrode, a separator, and a non-aqueous electrolyte solution containing lithium ions,
The separator includes a porous membrane and an insulating porous layer formed on at least one surface of the porous membrane, and the ratio of the thickness of the insulating porous layer to the thickness of the porous membrane is 20% to 125%,
When the initial room temperature discharge internal resistance of the non-aqueous lithium storage element is Ra (Ω), and the internal resistance at 25 ° C. after storage for 2 months at a cell voltage of 4 V and an environmental temperature of 60 ° C. is Rb (Ω), A non-aqueous lithium storage element having Rb / Ra of 3.0 or less.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016192669A JP2018056435A (en) | 2016-09-30 | 2016-09-30 | Nonaqueous lithium power storage element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016192669A JP2018056435A (en) | 2016-09-30 | 2016-09-30 | Nonaqueous lithium power storage element |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2018056435A JP2018056435A (en) | 2018-04-05 |
| JP2018056435A5 true JP2018056435A5 (en) | 2019-09-05 |
Family
ID=61833168
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2016192669A Pending JP2018056435A (en) | 2016-09-30 | 2016-09-30 | Nonaqueous lithium power storage element |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2018056435A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113812038A (en) * | 2019-05-13 | 2021-12-17 | 旭化成株式会社 | Separator for power storage device and power storage device |
| WO2022000312A1 (en) * | 2020-06-30 | 2022-01-06 | 宁德新能源科技有限公司 | Separator, electrochemical device comprising same, and electronic device |
| KR20230031807A (en) * | 2021-08-27 | 2023-03-07 | 주식회사 엘지에너지솔루션 | Separator for an electrochemical device, electrode assembly and electrochemical device comprising the same |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010225291A (en) * | 2009-03-19 | 2010-10-07 | Toyota Motor Corp | Lithium-ion secondary battery and method of manufacturing the same |
| WO2014115723A1 (en) * | 2013-01-22 | 2014-07-31 | 旭化成株式会社 | Lithium ion capacitor |
| JP6286829B2 (en) * | 2013-01-28 | 2018-03-07 | 日本電気株式会社 | Lithium ion secondary battery |
| CN106663549B (en) * | 2014-07-09 | 2018-10-12 | 旭化成株式会社 | Nonaqueous lithium-type storage element |
| US20170263386A1 (en) * | 2014-08-29 | 2017-09-14 | Sumitomo Electric Industries, Ltd. | Negative electrode material for power storage device, manufacturing method thereof, and lithium ion power storage device |
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2016
- 2016-09-30 JP JP2016192669A patent/JP2018056435A/en active Pending
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