正极铅膏用添加剂正极活性物质微观结构非常脆弱，它取决于发生在Pbc ) ：多个团块表面上的过程。然而这些过程当强烈干扰并影响其进行机理时，就会导致Pb 伍晶体和团块的脱落，以及活性物质钝化或软化。正是由于这些限制，所用在正极铅膏中的添加剂无论数量或者品种，都比负极添加剂相对要少得多。一般来说，正极添加剂发挥一种．单纯的机械作用。提高极板的结构强度与增加活性物质的孔隙度，这些物质有所谓“稳定强化添加剂”或称“保持性添加剂”。这类增强剂有短纤维3mm 长的聚醋、聚丙烯纤维，还有聚四氟乙烯乳液或者适量的磷酸。
正极活性物质的容量是可以提高的，用增加活性物质的孔隙度与增加导电性都可以实现正极增容。但添加这些发孔剂、导电剂一类物质时要求在可靠无疑的范围内，因为最容易超限。一旦超限就会引起正极活性物质崩坏，缩短电池寿命。
The cathode lead cream is used tiny view structure of live material of additive cathode very weak, it is decided by occurrence in Pbc):Several conglomeration superficial of process.However these processes are strong interference and influence it to carry on mechanism, will cause Pb five sheding off of crystals and conglomerationses, and the live material bluntness turns or softens.BE exactly because of these restriction, use in the cathode lead additive within cream regardless amount or species, all more opposite than anode additive want to be little many.Generally speaking, the cathode additive develops 1 kind. pure of machine function.The hole degree that raises pole knothole structure strength and increment activity material, these materials have to call "stability enhance an additive" or call"keep sex additive".This have a long short fiber 3 mm of gather a vinegar, polypropylene fiber, also have already gathered four fluorine ethylene lotion or just the right amount of phosphoric acid.
Cathode activity material of the capacity can raise, using hole degree and increment electrical conductivity of increasing the activity materials can carry out a cathode to increase to permit.But add these hair bore, conduct electricity a type of material request in the dependable and beyond doubt scope, because of most easily super limit.Once the super limit will arouse live material of cathode to collapse bad, shorten battery life.
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