TANTAK山特蓄电池6GFM-65 12V65AH
山特蓄电池发展史；铅酸蓄电池历经了许多重大的改进，提高了能量密度、循环寿命、高倍率放电等性能。然而，开口式铅酸蓄电池有两个主要缺点：①充电末期水会分解为氢，氧气体析出，需经常加酸、加水，维护工作繁重；②气体溢出时携带酸雾，腐蚀周围设备，并污染环境，限制了电池的应用。近二十年来，为了解决以上的两个问题，世界各国竞相开发密封铅酸蓄电池，希望实现电池的密封，获得干净的绿色能源。 1912年ThomasEdison发表专利，提出在单体电池的上部空间使用铂丝，在有电流通过时，铂被加热，成为氢、氧化合的催化剂，使析出的H2与O2重新化合，返回电解液中。但该专利未能付诸实现：①铂催化剂很快失效；②气体不是按氢2氧1的化学计量数析出，电池内部仍有气体发生；③存在爆炸的危险。 60年代，美国Gates公司发明铅钙合金，引起了密封铅酸蓄电池开发热，世界各大电池公司投入大量人力物力进行开发。 1969年，美国登月计划实施，密封阀控铅酸蓄电池和镉镍电池被列入月球车用动力电源，最后镉镍电池被采用，但密封铅酸蓄电池技术从此得到发展。 1969-1970年，美国EC公司制造了大约350,000只小型密封铅酸蓄电池，该电池采用玻璃纤维棉隔板，贫液式系统，这是最早的商业用阀控式铅酸蓄电池，但当时尚未认识到其氧再化合原理。 1975年，GatesRutter公司在经过许多年努力并付出高昂代价的情况下，获得了一项D型密封铅酸干电池的发明专利，成为今天VRLA的电池原型。The battery uses fiberglass-cotton partition and a lean-liquid system, which was the first commercial valve-regulated lead-acid battery, but its oxygen-recombination principle has not yet been recognized. In 1975, after years of hard work and high costs, Gates Rutter obtained a patent for the D-type sealed lead-acid dry battery, which became the prototype of today's VRLA batteries. In 1979, GNB, after purchasing Gates patents, invented MFX positive grid patented alloy, began large-scale publicity and production of large capacity suction sealed maintenance-free lead-acid batteries. In 1984, VRLA batteries were widely used in the US and Europe. In 1987, with the rapid development of the telecommunications industry, VRLA batteries have been widely used in the telecommunications sector. In 1991, the British Telecom Department inspected and tested the VRLA batteries in use. It was found that the VRLA batteries did not undergo thermal runaway, combustion and early capacity failure as advertised by manufacturers. This led to widespread discussion in the battery industry. The development prospects of VRLA batteries, capacity monitoring technology and so on were also discussed. Thermal runaway and reliability are questionable. At this point, VRLA batteries account for less than 50% of the market share of liquid-rich batteries. The original name of "sealed push-free lead-acid batteries" was officially replaced by "VRLA batteries", because VRLA batteries are batteries that need to be managed and easy to be misunderstood by "maintenance-free" batteries. In 1992, in response to the problems raised in 1991, battery experts and manufacturers of technicians have published articles put forward countermeasures and views, in which DrDarid Feder proposed the use of conductivity measurement method to monitor VRLA batteries. I.c.Bearinger reviews the advancement of VRLA batteries from the technical aspect. These articles have greatly promoted the development and application of VRLA batteries.