[특허]Methods of preparing electrochemical cells

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	H01M-006/00
출원번호	US-0590458 (2000-06-09)
발명자 / 주소	Steven A. Carlson
출원인 / 주소	Moltech Corporation
대리인 / 주소	Jacqueline M. Nicol
인용정보	피인용 횟수 : 29 인용 특허 : 32

초록 ▼

Provided are methods of preparing a cathode/separator assembly for use in electrochemical cells in which a microporous separator layer is coated on a temporary carrier substrate and a cathode active layer is then coated or laminated on the separator layer prior to removing the temporary carrier subs

Provided are methods of preparing a cathode/separator assembly for use in electrochemical cells in which a microporous separator layer is coated on a temporary carrier substrate and a cathode active layer is then coated or laminated on the separator layer prior to removing the temporary carrier substrate from the separator layer. The microporous separator layer may comprise one or more microporous xerogel layers. Optionally, the cathode/separator assembly may comprise one or more protective coating layers which are in contact with at least one of the microporous xerogel layers, and one of the protective coating layers may be coated on the temporary carrier substrate prior to coating the separator layer. Also, provided are methods of preparing electrochemical cells utilizing cathode/separator assemblies prepared by such methods, and cathode/separator assemblies and electrochemical cells prepared by such methods.

대표청구항 ▼

1. A method of preparing a cathode/separator assembly for use in an electrochemical cell, wherein said cathode/separator assembly comprises a cathode active layer, a microporous separator layer and one or more protective coating layers comprising a polymer; wherein said separator layer comprises one

1. A method of preparing a cathode/separator assembly for use in an electrochemical cell, wherein said cathode/separator assembly comprises a cathode active layer, a microporous separator layer and one or more protective coating layers comprising a polymer; wherein said separator layer comprises one or more microporous xerogel layers, and wherein said one or more protective coating layers are in contact with at least one of said one or more microporous xerogel layers of said separator layer; said method comprising the steps of:(a) coating one of the one or more protective coating layers on a temporary carrier substrate, wherein said one of the one or more protective coating layers has a first surface in contact with said temporary carrier substrate and has a second surface on the side opposite from said temporary carrier substrate; (b) coating said microporous separator layer on said second surface of said one of the one or more protective coating layers, wherein said separator layer has a first surface in contact with said second surface of said one of the one or more protective coating layers and has a second surface on the side opposite from said one of the one or more protective coating layers; (c) coating said cathode active layer in a pattern on said second surface of said separator layer, wherein said cathode active layer has a first surface in contact with said second surface of said separator layer and has a second surface on the side opposite from said separator layer; and (d) removing said temporary carrier substrate from said first surface of said one of the one or more protective coating layers to form said cathode/separator assembly.

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