JP2011175966A - X線感知可能電池セパレータ及び関連方法 - Google Patents
X線感知可能電池セパレータ及び関連方法 Download PDFInfo
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- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims abstract description 25
- 229910052744 lithium Inorganic materials 0.000 claims abstract description 25
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical group [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims description 40
- 229910052751 metal Inorganic materials 0.000 claims description 29
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- 229910052712 strontium Inorganic materials 0.000 claims description 9
- 229910052715 tantalum Inorganic materials 0.000 claims description 9
- 229910052718 tin Inorganic materials 0.000 claims description 9
- 229910052719 titanium Inorganic materials 0.000 claims description 9
- 229910052721 tungsten Inorganic materials 0.000 claims description 9
- 229910052725 zinc Inorganic materials 0.000 claims description 9
- 229910052726 zirconium Inorganic materials 0.000 claims description 9
- 230000001678 irradiating effect Effects 0.000 claims description 7
- 150000003839 salts Chemical class 0.000 claims description 7
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- 239000004699 Ultra-high molecular weight polyethylene Substances 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
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- 229920000785 ultra high molecular weight polyethylene Polymers 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229920010741 Ultra High Molecular Weight Polyethylene (UHMWPE) Polymers 0.000 description 1
- 239000003125 aqueous solvent Substances 0.000 description 1
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- 230000002040 relaxant effect Effects 0.000 description 1
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- 238000004804 winding Methods 0.000 description 1
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- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
- H01M50/409—Separators, membranes or diaphragms characterised by the material
- H01M50/446—Composite material consisting of a mixture of organic and inorganic materials
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- G01N23/06—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and measuring the absorption
- G01N23/083—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and measuring the absorption the radiation being X-rays
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- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
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- H01M10/052—Li-accumulators
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- H01M10/00—Secondary cells; Manufacture thereof
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- H01M10/4235—Safety or regulating additives or arrangements in electrodes, separators or electrolyte
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- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
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Abstract
【解決手段】X線感知可能電池セパレータ10はX線検出可能成分を有する微多孔膜を含み、この成分は膜中又は膜上に含まれるか或いは膜に添加される。X線検出可能性分は、微多孔膜又はセパレータ10の20重量%未満を構成する。電池、セル、スタック、ゼリーロール15、缶26等の内部でのセパレータ10の位置を検出する方法は、(1)X線感知可能電池セパレータ10を含む電池、セル、スタック、ゼリーロール15等を準備する工程、(2)この電池、セル、スタック、ゼリーロール15等にX線を照射する工程、及び(3)それにより電池、セル、スタック、ゼリーロール15等の内部でのセパレータ10の位置を検出する工程を含む。
【選択図】図3
Description
Claims (18)
- リチウム二次電池内の電極に対する相対的なセパレータの位置を検出する方法であって、
正極、負極、これら電極の間に設置されたX線感知可能セパレータ、及び前記電極と前記セパレータとを収容する缶を含むリチウム二次電池を準備する工程であって、前記X線感知可能セパレータがX線検出可能成分を分散した微多孔膜を含み、前記X線検出可能成分が前記膜中に2〜20重量%含む、工程、
前記リチウム二次電池にX線を照射する工程、
前記電極に対する相対的な前記セパレータの位置を測定する工程、並びに
前記電極に対する相対的な前記位置に基づいて前記リチウム二次電池の合否を判定する工程を含むことを特徴とする方法。 - 前記膜中の前記X線検出可能成分の比率が2〜10重量%であることを特徴とする請求項1に記載の方法。
- 前記膜中の前記X線検出可能成分の比率が2〜5重量%であることを特徴とする請求項1に記載の方法。
- 前記膜中の前記X線検出可能成分の比率が4重量%であることを特徴とする請求項1に記載の方法。
- 前記X線検出可能成分が金属、金属酸化物、金属リン酸塩、金属炭酸塩、X線蛍光物質、金属塩、金属硫酸塩、及びこれらの混合物からなる群から選ばれ、これら成分の金属がZn、Ti、Mn、Ba、Ni、W、Hg、Si、Cs、Sr、Ca、Rb、Ta、Zr、Al、Pb、Sn、Sb、Cu、Fe、及びこれらの混合物からなる群から選ばれることを特徴とする請求項1に記載の方法。
- 前記X線検出可能成分が硫酸バリウムであることを特徴とする請求項5に記載の方法。
- リチウム二次電池用のX線感知可能電池セパレータであって、
X線検出可能成分を有する微多孔膜を含み、前記成分が前記膜中に分散した構造、前記成分が前記膜を被覆した構造、及び前記成分を前記膜に添加した構造のうちの少なくとも1つの構造を有し、前記膜又は前記セパレータ中の前記X線検出可能成分の比率が2〜20重量%であることを特徴とするX線感知可能電池セパレータ。 - 前記膜中の前記X線検出可能成分の比率が2〜10重量%であることを特徴とする請求項7に記載のX線感知可能電池セパレータ。
- 前記膜中の前記X線検出可能成分の比率が2〜5重量%であることを特徴とする請求項7に記載のX線感知可能電池セパレータ。
- 前記膜中の前記X線検出可能成分の比率が4重量%であることを特徴とする請求項7に記載のX線感知可能電池セパレータ。
- 前記X線検出可能成分が金属、金属酸化物、金属リン酸塩、金属炭酸塩、X線蛍光物質、金属塩、金属硫酸塩、及びこれらの混合物からなる群から選ばれ、これら成分の金属がZn、Ti、Mn、Ba、Ni、W、Hg、Si、Cs、Sr、Ca、Rb、Ta、Zr、Al、Pb、Sn、Sb、Cu、Fe、及びこれらの混合物からなる群から選ばれることを特徴とする請求項7に記載のX線感知可能電池セパレータ。
- 前記X線検出可能成分が硫酸バリウムであることを特徴とする請求項7に記載のX線感知可能電池セパレータ。
- X線検査に用いられるリチウム二次電池であって、
正極、負極、これら電極の間に設置されたX線感知可能セパレータ、及び前記電極と前記セパレータとを収容する缶を含み、前記X線感知可能セパレータはX線検出可能成分が分散した微多孔膜を含み、前記膜中の前記X線検出可能成分の比率が2〜20重量%であることを特徴とするリチウム二次電池。 - 前記膜中の前記X線検出可能成分の比率が2〜10重量%であることを特徴とする請求項13に記載のリチウム二次電池。
- 前記膜中の前記X線検出可能成分の比率が2〜5重量%であることを特徴とする請求項13に記載のリチウム二次電池。
- 前記膜中の前記X線検出可能成分の比率が4重量%であることを特徴とする請求項13に記載のリチウム二次電池。
- 前記X線検出可能成分が金属、金属酸化物、金属リン酸塩、金属炭酸塩、X線蛍光物質、金属塩、金属硫酸塩、及びこれらの混合物からなる群から選ばれ、これら成分の金属がZn、Ti、Mn、Ba、Ni、W、Hg、Si、Cs、Sr、Ca、Rb、Ta、Zr、Al、Pb、Sn、Sb、Cu、Fe、及びこれらの混合物からなる群から選ばれることを特徴とする請求項13に記載のリチウム二次電池。
- 前記X線検出可能成分が硫酸バリウムであることを特徴とする請求項17に記載のリチウム二次電池。
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US12/689,418 US9453805B2 (en) | 2010-01-19 | 2010-01-19 | X-ray sensitive battery separators and related methods |
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JP5898405B2 (ja) | 2016-04-06 |
US9274068B2 (en) | 2016-03-01 |
TWI491872B (zh) | 2015-07-11 |
KR20110085858A (ko) | 2011-07-27 |
US20110176661A1 (en) | 2011-07-21 |
KR20180089342A (ko) | 2018-08-08 |
JP6250016B2 (ja) | 2017-12-20 |
KR20170130325A (ko) | 2017-11-28 |
JP2021093376A (ja) | 2021-06-17 |
CN105655527A (zh) | 2016-06-08 |
JP6849762B2 (ja) | 2021-03-31 |
JP2016103480A (ja) | 2016-06-02 |
KR20190091243A (ko) | 2019-08-05 |
US20160011127A1 (en) | 2016-01-14 |
JP6588070B2 (ja) | 2019-10-09 |
KR102230709B1 (ko) | 2021-03-22 |
TW201126161A (en) | 2011-08-01 |
JP2018060802A (ja) | 2018-04-12 |
JP7214767B2 (ja) | 2023-01-30 |
KR101801976B1 (ko) | 2017-11-27 |
JP2020074266A (ja) | 2020-05-14 |
CN102141387A (zh) | 2011-08-03 |
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