JPWO2016114257A1 - 電極積層体における電極板の位置ずれ検出方法およびその装置 - Google Patents
電極積層体における電極板の位置ずれ検出方法およびその装置 Download PDFInfo
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Abstract
Description
1 正電極板
2 負電極板
3 正電極シート
4 負電極シート
5 正極活物質
6 負極活物質
7 正極側接続部
8 負極側接続部
9 セパレータ
10 X線検査装置
11 X線照射部
12 X線検出部
12A 演算処理部
Claims (4)
- アルミ箔で形成した正電極シートの両面上にそれぞれ正極活物質を塗布して形成した正電極板と、他の金属箔で形成した負電極シートの両面上にそれぞれ負極活物質を塗布して形成した負電極板と絶縁体のセパレータを介して交互に積層した電極積層体の前記セパレータの幅方向の一端面から突出する前記正極活物質の未塗工部分である前記アルミ箔の正極側接続部を含む前記電極積層体の一端面側の所定の領域に向けてX線を照射してX線画像を撮像するとともに、前記X線画像に前記アルミ箔が写らないように前記X線の強度を調整し、
前記X線画像における前記正極側接続部との境界である正極活物質の塗工端の位置と、前記一端面側の負電極板の端面の位置とを特定し、前記塗工端の位置と、前記一端面側の負極電極板の端面の位置に基づき前記正電極板と前記負電極板との位置ずれを検出することを特徴とする電極積層体における電極板の位置ずれ検出方法。 - 請求項1に記載する電極板の位置ずれ検出方法において、
前記X線は、X線管における管電圧を70kV以上、管電流を280μA以上として得る強度であることを特徴とする電極積層体における電極板の位置ずれ検出方法。 - アルミ箔で形成した正電極シートの両面上にそれぞれ正極活物質を塗布して形成した正電極板と、他の金属箔で形成した負電極シートの両面上にそれぞれ負極活物質を塗布して形成した負電極板とを絶縁体のセパレータを介して交互に積層した電極積層体における電極板の位置ずれ検出装置において、
前記電極積層体の前記セパレータの幅方向の一端面から突出する前記正極活物質の未塗工部分である前記アルミ箔を挟んで配設されたX線照射部及びX線検出部と、演算処理部と、を有するとともに、
前記X線照射部は、前記電極積層体の前記セパレータの幅方向の一端面から突出する前記正極活物質の未塗工部分である前記アルミ箔の正極側接続部を含む前記電極積層体の一端面側の所定の領域に前記アルミ箔を透過する強度のX線を照射し、
前記X線検出部は、照射された前記X線を入射して前記所定の領域の画像を表すX線画像信号を生成し、
前記演算処理部は、前記X線画像信号に基づき、前記正極側接続部との境界である正極活物質の塗工端の位置と、前記一端面側の負電極板の端面の位置とを特定し、前記一端面側の塗工端の位置と、前記負極電極板の端面の位置に基づき正電極板と負電極板との前記電極積層体との位置ずれを検出する演算処理部を内蔵してることを特徴とする電極積層体における電極板の位置ずれ検出装置。 - 請求項3に記載する電極積層体における電極板の位置ずれ検出装置において、
前記X線照射部においてX線を照射するX線管は、管電圧を70kV以上、管電流を280μA以上としたことを特徴とする電極積層体における電極板の位置ずれ検出装置。
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CN106091999B (zh) * | 2016-07-26 | 2018-08-21 | 东莞新能源科技有限公司 | 一种极片错位的检测方法和装置 |
JP2019067645A (ja) * | 2017-10-02 | 2019-04-25 | オートモーティブエナジーサプライ株式会社 | 電池の検査方法 |
JP6563469B2 (ja) * | 2017-12-15 | 2019-08-21 | 本田技研工業株式会社 | 電極接合方法及び電極接合装置 |
CN108180826B (zh) * | 2017-12-20 | 2023-12-22 | 深圳湾新科技有限公司 | 一种锂电池卷绕层边界的检测设备及检测方法 |
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