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    • 9. 发明申请
    • THERMO-MECHANICAL TREATED LEAD ALLOYS
    • 热机械处理的铅合金
    • WO2003046243A1
    • 2003-06-05
    • PCT/US2001/044061
    • 2001-11-26
    • INTEGRAN TECHNOLOGIES INC.LIMOGES, David, L.GONZALEZ, FranciscoPALUMBO, GinoTOMANTSCHGER, Ing., KlausLIN, Peter, K.
    • INTEGRAN TECHNOLOGIES INC.LIMOGES, David, L.GONZALEZ, FranciscoPALUMBO, GinoTOMANTSCHGER, Ing., KlausLIN, Peter, K.
    • C22F1/12
    • C22F1/12C22C11/00H01M4/685H01M4/82
    • Recrystallized lead and lead alloy positive current collectors and connectors such as straps and lugs for use e.g. in lead acid batteries and electrowinning anodes, having an increased percentage of special grain boundaries in at least part of the microstructure, which have been provided by a process comprising of (i) cold or hot rolling or cold or hot extrusion or (ii) steps of deforming the lead or lead alloy, and subsequently annealing the lead or lead alloy. Either a single cycle of working and annealing can be provided, or a plurality of such cycles can be provided. The amount of deformation, the recrystallization time and temperature, and the number of repetitions of such steps are selected to ensure that a substantial increase in the population of special grain boundaries is provided in the microstructure, to improve resistance to creep, intergranular corrosion and intergranular cracking of the current collectors and connectors during battery service, and result in extended battery life and the opportunity to reduce the size and weight of the battery.
    • 重结晶的铅和铅合金正极集流体和连接件,例如用于例如带和凸耳的连接件。 在通过包括(i)冷或热轧或冷或热挤压或(ii)步骤的方法提供的在至少部分微结构中具有增加的特殊晶界的百分比的铅酸电池和电解冶金阳极中, 使铅或铅合金变形,随后使铅或铅合金退火。 可以提供单个工作循环和退火,或者可以提供多个这样的循环。 选择变形量,再结晶时间和温度以及这些步骤的重复次数以确保显微组织中提供特殊晶界的群体的显着增加,以提高抗蠕变,晶间腐蚀和晶间间隙 在电池使用过程中集电器和连接器开裂,并延长电池寿命并有机会减小电池的尺寸和重量。