JP5149505B2 - リチウム/オキシハロゲン化物を用いた電気化学電池のカソードコレクタ製造装置、及び製造方法 - Google Patents
リチウム/オキシハロゲン化物を用いた電気化学電池のカソードコレクタ製造装置、及び製造方法 Download PDFInfo
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- JP5149505B2 JP5149505B2 JP2006346330A JP2006346330A JP5149505B2 JP 5149505 B2 JP5149505 B2 JP 5149505B2 JP 2006346330 A JP2006346330 A JP 2006346330A JP 2006346330 A JP2006346330 A JP 2006346330A JP 5149505 B2 JP5149505 B2 JP 5149505B2
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- 150000004763 sulfides Chemical class 0.000 description 1
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- ZUHZGEOKBKGPSW-UHFFFAOYSA-N tetraglyme Chemical compound COCCOCCOCCOCCOC ZUHZGEOKBKGPSW-UHFFFAOYSA-N 0.000 description 1
- YFNKIDBQEZZDLK-UHFFFAOYSA-N triglyme Chemical compound COCCOCCOCCOC YFNKIDBQEZZDLK-UHFFFAOYSA-N 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- GPPXJZIENCGNKB-UHFFFAOYSA-N vanadium Chemical compound [V]#[V] GPPXJZIENCGNKB-UHFFFAOYSA-N 0.000 description 1
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Description
14 コレクタ基材
16 右側供給ホッパー
18 左側供給ホッパー
20、22 第1シュート
24、26 第2シュート
28 カレンダーホッパー
30 ゲート
32、34 ローラー
80 台座
102 導電性構造体
Claims (38)
- 粉末状の導電性材料をコレクタ基材に接触させる装置であって、前記装置は、
a)前記導電性材料を収容し、前記導電性材料が通り抜けて移動可能な出口を有するカレンダーホッパーと、
b)前記カレンダーホッパーの出口に位置し、隣り合って配置され、反対に回転可能な一対の第1及び第2のカレンダーローラーと、
c)前記第1及び第2のカレンダーローラーの上方に位置する前記カレンダーホッパーを、第1の部分と第2の部分とに一直線に分割するゲートであって、前記コレクタ基材の先端を受け取るゲート近端と、前記第1及び第2のローラー上に僅かな間隔を空けて配置されたゲート遠端とを含むゲートと、を備え、
d)前記第1及び第2のローラーの反対回転動作によって、前記コレクタ基材が前記ゲート近端から前記ゲート遠端まで前記ゲート中を通って移動可能で、前記ローラー間の間隙において、前記コレクタ基材の対向した表裏面と、調整された量の前記導電性材料とが接触し、前記導電性材料は、前記ゲート遠端と前記第1及び第2のローラーのそれぞれの間のカレンダー間隙を調節することによって調整されるようになっており、
e)前記ゲートは、隣り合って配置された第1及び第2のゲートプレートからなり、前記コレクタ基材は、それらの間を前記ゲート近端から前記ゲート遠端まで移動するようになっていることを特徴とする装置。 - 前記導電性材料を最初に収容する供給ホッパーをさらに備え、前記供給ホッパーは、前記導電性材料を受け取り、それを前記カレンダーホッパーに移動させるシュートへと続く出口を含むことを特徴とする請求項1に記載の装置。
- 前記供給ホッパーは、前記シュートへの前記導電性材料の移動を補助する振動機構を含むことを特徴とする請求項2に記載の装置。
- 前記ゲートは、前記カレンダーホッパーを二分割し、前記第1及び第2のローラーそれぞれの回転軸、及びそれらの間の僅かな間隙を通る軸に対して垂直に配置されていることを特徴とする請求項1に記載の装置。
- 前記第1及び第2のゲートプレートは、その遠端においてそれぞれ上側及び外側に向けて傾斜していることを特徴とする請求項1に記載の装置。
- 前記第1及び第2のローラーの間の前記カレンダー間隙に対して、前記ゲートが上下方向に調整可能であることを特徴とする請求項1に記載の装置。
- 前記第1または第2のローラーのいずれかに近づき、または遠ざかって、前記ゲートが横方向に調整可能であることを特徴とする請求項1に記載の装置。
- 前記第1及び第2のローラーの間隙が調整可能であることを特徴とする請求項1に記載の装置。
- 前記カレンダーホッパーの前記出口は、前記第1及び第2のローラーの湾曲した表面と互いに接近して配置されていることを特徴とする請求項1に記載の装置。
- 前記導電性材料は、本質的に乾燥したものであることを特徴とする請求項1に記載の装置。
- 前記導電性材料は、アセチレンブラック、黒鉛、コークス、カーボンブラック、一フッ化炭素、及びこれらの混合物からなる群から選択されることを特徴とする請求項1に記載の装置。
- 前記導電性材料は、導電性希釈剤を含むことを特徴とする請求項1に記載の装置。
- 前記導電性希釈剤は、熱可塑性ポリマー、天然ゴム、及び金属粉末からなる群から選択されることを特徴とする請求項12に記載の装置。
- 前記供給ホッパーは、前記カレンダーホッパーの前記第1及び第2の部分へそれぞれ前記導電性材料を供給する第1及び第2の供給ホッパーからなることを特徴とする請求項2に記載の装置。
- 前記第1及び第2の供給ホッパーは傾斜した遠端を有するシュートにそれぞれ続き、前記遠端は、前記コレクタ基材の対向した表裏面の幅方向にわたって前記導電性材料を均一に分散させることを特徴とする請求項14に記載の装置。
- 前記第1及び第2の供給ホッパーが、異なる粉末状の導電性材料を保持することを特徴とする請求項14に記載の装置。
- 前記第1及び第2の供給ホッパーは、2以上の粉末状の導電性材料からなる異なった混合物をそれぞれ保持することを特徴とする請求項14に記載の装置。
- 前記第1及び第2の供給ホッパーは、少なくとも1つの粉末状の導電性材料と少なくとも1つの導電性希釈剤の混合物をそれぞれ保持することを特徴とする請求項14に記載の装置。
- 前記供給ホッパーは、その内部に収容された前記導電性材料の充填量を調整するセンサ
ーを含むことを特徴とする請求項2に記載の装置。 - 前記カレンダーホッパーは、前記導電性材料を綿毛状に保つ撹拌機を含むことを特徴と
する請求項1に記載の装置。 - 前記コレクタ基材は、ニッケル、銅、チタン、コバルト、タンタル、アルミニウム、ステンレス鋼、及びこれらの合金からなる群から選択される箔またはスクリーン状の微孔性構造であることを特徴とする請求項1に記載の装置。
- 前記コレクタ基材の対向した表裏面上の前記導電性材料は、異なる厚さを有していることを特徴とする請求項1に記載の装置。
- 粉末状の導電性材料をコレクタ基材に接触させる装置であって、前記装置は、
a)各々が出口を有し、前記導電性材料を最初に収容する第1及び第2の供給ホッパーと、
b)傾斜した遠端部を有し、前記第1及び第2の供給ホッパーの出口から前記導電性材料を受け取る第1及び第2シュートと、
c)前記第1及び第2シュートから前記導電性材料を受け取り、前記導電性材料が通り抜けて移動する出口を有するカレンダーホッパーと、
d)前記カレンダーホッパーの出口に位置し、隣り合って配置され、反対に回転可能な一対の第1及び第2のカレンダーローラーと、
e)前記第1及び第2のカレンダーローラーの上方に位置する前記カレンダーホッパーを、第1の部分と第2の部分とに一直線に分割するゲートを備え、前記ゲートは、前記コレクタ基材の先端を受け取るゲート近端と、前記第1及び第2のローラー上に僅かな間隔を開けて配置されるゲート遠端と含み、前記第1及び第2シュートの傾斜した遠端部は、前記コレクタ基材の対向した表裏面の幅方向にわたって、前記導電性材料を前記カレンダーホッパー内に均一に分散させ、
f)前記第1及び第2のローラーの反対回転動作によって、前記コレクタ基材が前記ゲート近端から前記ゲート遠端まで前記ゲート中を通って移動可能で、前記ローラー間の間隙において、前記コレクタ基材の対向した表裏面と、調整された量の前記導電性材料とが接触し、前記導電性材料は、前記ゲート遠端と前記第1及び第2のローラーのそれぞれの間のカレンダー間隙を調節することによって調整されるようになっており、
g)前記ゲートは、隣り合って配置された第1及び第2のゲートプレートからなり、前記コレクタ基材は、それらの間を前記ゲート近端から前記ゲート遠端まで移動するようになっていることを特徴とする装置。 - 前記ゲートは、前記カレンダーホッパーを二分割し、前記第1及び第2のローラーそれぞれの回転軸、及びそれらの間の僅かな間隙を通る軸に対して垂直に配置されていることを特徴とする請求項23に記載の装置。
- 前記第1及び第2のゲートプレートは、それぞれその遠端において上側及び外側に向けて傾斜していることを特徴とする請求項23に記載の装置。
- 前記第1及び第2のローラーの間の前記カレンダー間隙に対して、前記ゲートが上下方向に調整可能であることを特徴とする請求項23に記載の装置。
- 前記第1または第2のローラーのいずれかに近づき、または遠ざかって、前記ゲートが横方向に調整可能であることを特徴とする請求項23に記載の装置。
- 前記第1及び第2のローラーの間隙が調整可能であることを特徴とする請求項23に記載の装置。
- 前記導電性材料は、本質的に乾燥したものであることを特徴とする請求項23に記載の装置。
- 前記導電性材料は、アセチレンブラック、黒鉛、コークス、カーボンブラック、一フッ化炭素、及びこれらの混合物からなる群から選択されることを特徴とする請求項23に記載の装置。
- 前記導電性材料は、導電性希釈剤を含むことを特徴とする請求項23に記載の装置。
- 前記第1及び第2の供給ホッパーが、異なる粉末状の導電性材料を保持することを特徴とする請求項23に記載の装置。
- 前記第1及び第2の供給ホッパーは、2以上の粉末状の導電性材料からなる異なった混合物をそれぞれ保持することを特徴とする請求項23に記載の装置。
- 前記第1及び第2の供給ホッパーは、少なくとも1つの粉末状の導電性材料と少なくとも1つの導電性希釈剤の混合物をそれぞれ保持することを特徴とする請求項23に記載の装置。
- 前記コレクタ基材の対向した表裏面上の前記導電性材料は、異なる厚さを有していることを特徴とする請求項23に記載の装置。
- 電気化学電池の製造方法であって、
a)i)粉末状の導電性材料を収容し、前記導電性材料が通り抜けて移動可能な出口を含むカレンダーホッパーと、
ii)前記カレンダーホッパーの出口に位置し、隣り合って配置され、反対に回転可能な一対の第1及び第2のカレンダーローラーと、
iii)ゲート近端と、前記第1及び第2のローラー上に僅かな間隔を空けて配置されたゲート遠端とを含む、前記第1及び第2のカレンダーローラーの上方に位置する前記カレンダーホッパーを第1の部分と第2の部分とに一直線に分割するゲートであって、隣り合って配置された第1及び第2のゲートプレートからなり、コレクタ基材がそれらの間を前記ゲート近端から前記ゲート遠端まで移動するようになっているゲートと、
からなる、前記導電性材料を前記コレクタ基材に接触させる装置を準備するステップと、
b)前記ローラー間の間隙において前記コレクタ基材の対向した表裏面に接触する前記第1及び第2のローラーの反対回転動作によって、前記コレクタ基材が前記ゲート近端から前記ゲート遠端まで前記ゲート中を通って移動するステップと、
c)前記ゲート遠端と前記第1及び第2のローラーのそれぞれの間のカレンダー間隙を調節することによって、前記コレクタ基材の表裏面に接触する前記導電性材料の量を調整して、それによって導電性構造体を形成するステップと、
d)セパレーターを前記導電性構造体及び対向電極の中間に位置決めし、それによって電極組立て行うステップと、
e)電解液で活性化された筐体中に電極組立品を収容するステップと、
を含むことを特徴とする方法。 - 前記導電性構造体、及びリチウムオキシハライド化物電池のカソードコレクタまたはリチウムイオン電池におけるアノードを準備するステップを含むことを特徴とする請求項36に記載の方法。
- 前記導電性材料を、アセチレンブラック、黒鉛、コークス、カーボンブラック、一フッ化炭素、酸化バナジウム銀、酸化バナジウム銀銅、二酸化マンガン、二硫化チタン、酸化銅、硫化銅、硫化鉄、二硫化鉄、酸化コバルト、酸化ニッケル、酸化バナジウム銅、リチウムコバルト酸化ニッケル、LiNiO 2 、LiMn 2 O 4 、LiCoO 2 、LiCo 0.92 Sn 0.08 O 2 、及びこれらの混合物からなる群から選択するステップを含むことを特徴とする請求項36に記載の方法。
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