DEGASSING METHOD FOR ELECTRODE PASTE

The present invention relates to a deaeration method of an electrode paste. More particularly, the deaeration method introduces an electrode paste into a decompression container, and deaerates the electrode paste while imparting a shearing force to the electrode paste. The electrode paste is prepare...

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Bibliographische Detailangaben
Hauptverfasser:	SHIMOZONO YUJI, SUGIHARA ATSUSHI, GOTOH HIDEFUMI, NAKASHIMA MASAO
Format:	Patent
Sprache:	eng ; kor
Schlagworte:	BASIC ELECTRIC ELEMENTS CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY ELECTRICITY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY THEIR RELEVANT APPARATUS TRANSPORTING
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Beschreibung
Zusammenfassung:	The present invention relates to a deaeration method of an electrode paste. More particularly, the deaeration method introduces an electrode paste into a decompression container, and deaerates the electrode paste while imparting a shearing force to the electrode paste. The electrode paste is prepared by milling a dispersion medium and a solid powder which includes an electrode active substance. The solid powder constitutes at least 55 wt% of the electrode paste, and the pressure inside the decompression container is -50 kPa or more. In the present invention, both residual bubbles and drying of the electrode paste are suppressed, and a product yield is enhanced. 전극 활물질을 포함하는 고형분과 분산매를 혼련하여 이루어지는 전극용 페이스트를 감압 용기에 도입하고, 상기 전극용 페이스트에 전단력을 부여하면서 탈포하는, 전극용 페이스트의 탈포 방법이다. 전극용 페이스트에 있어서의 고형분의 비율을 55질량% 이상으로 하고, 감압 용기 내의 압력을 -50㎪ 이상으로 한다. 기포의 잔류 및 전극용 페이스트의 건조의 양방을 억제할 수 있어, 제품 수율이 향상된다.