公开(公告)号：US3861963A

公开(公告)日：1975-01-21

申请号：US15421871

申请日：1971-06-17

Applicant: MC DONNELL DOUGLAS CORP

Inventor： AFRANCE FRANK C ,  ROSA ALBERT G ,  HAAS RONALD J

IPC: H01M2/16 ,  H01M3/02

CPC classification number: H01M2/162

Abstract: Production of a separator, preferably in the form of a compartment, for insertion therein of a battery electrode, preferably by dip-coating a flexible porous substrate, e.g., potassium titanate paper or nylon, in a mixture preferably of a major portion of an inorganic or ceramic separator material, a minor portion of potassium titanate in short fiber form, and a minor portion of an organic polymer, e.g., polyphenylene oxide, dissolved in a suitable solvent such as chloroform. The flexible porous substrate is placed in the mixture, preferably maintained under vibration, and stirred; the substrate and applied coating are removed from the mixture, and the coating is dried to remove solvent and is cured at elevated temperature. The resulting porous separator, coated, filled or impregnated with the above mixture, has low resistivity, is smooth and uniform in thickness, and is flexible, and has high resistance to alkali and to elevated temperatures. Preferably the flexible porous substrate is first formed into a box or bag and then treated with the above mixture to form a separator. An electrode, such as a zinc electrode, is inserted in the bag either before or after coating and impregnation. Alternatively, a film or sheet of the substrate is treated with the above mixture to form a flexible separator, and the resulting flexible separator is then formed into a boxlike configuration for receiving an electrode, or is wrapped around an electrode or electrodes.

Abstract translation: 生产分离器，优选为隔室形式，用于在其中插入电池电极，优选通过将柔性多孔基材（例如钛酸钾纸或尼龙）浸渍在优选主要部分无机物的混合物中 或陶瓷分离器材料，短纤维形式的少部分钛酸钾和少部分溶解在合适溶剂如氯仿中的有机聚合物，例如聚苯醚。 将柔性多孔基材放置在混合物中，优选保持振动并搅拌; 从混合物中除去基材和涂覆的涂层，并将涂层干燥以除去溶剂并在升高的温度下固化。 用上述混合物涂布，填充或浸渍的所得多孔隔膜具有低电阻率，其厚度平滑且均匀，并且是柔性的，并且具有高的抗碱性和高温性。 优选地，柔性多孔基材首先被形成为箱或袋，然后用上述混合物处理以形成隔板。 在涂布和浸渍之前或之后，将诸如锌电极的电极插入袋中。 或者，用上述混合物处理衬底的膜或片以形成柔性隔板，然后将所得到的柔性隔板形成为用于接收电极的盒状构造，或者缠绕在电极或电极周围。