The Minamata Convention on Mercury is the world’s first legally binding international treaty on highly toxic metallic mercury. Mercury is mobile, highly toxic, persistent, and bioaccumulative. Its large-scale use and disorderly discharge pose a serious threat to human health and ecological security. Once mercury is released into the environment, it will enter the food chain represented by fish, and mercury can spread in the air. Exposure to mercury, even small amounts of mercury, can cause serious health problems. Mercury can have toxic side effects on the nervous, digestive, and immune systems, as well as on the lungs, kidneys, skin, and eyes, posing a threat to the development of the fetus and young children. China is a major producer and exporter of mercury-added products. Reducing the production of mercury-added products is a key task for the prevention and control of mercury pollution in China, and is also an important area for the control of the Minamata Convention on Mercury. The traditional button cell contains mercury. It is reported that after a mercury-containing button cell is discarded into nature, the released mercury can contaminate 600,000 liters of water, which is equivalent to a person's lifetime water consumption. At present, China produces no less than 10 billion mercury-containing button batteries every year. It is conceivable for the environment and human hazards. However, due to the mercury-free status of button cells, it is a recognized worldwide problem that, to date, the vast majority of button cells on the market are still mercury-containing. Therefore, the mercury-free status of button cells is pressing and imminent! Recalling the painstaking process of mercury-free button cells, the battery industry colleagues in Europe and the United States and Japan spent a great deal of manpower and material resources in research and development in the decades before and after. Unfortunately, they all ended without results. Although Sony Corporation of Japan announced the commercialization of six models of alkaline mercury-free button batteries on June 10, 2009, it successfully eliminated the use of mercury in button batteries. However, the practice has proved that this new type of battery still has a fatal flaw in safety, that is, the battery has the risk of swelling and explosion during storage or use. Therefore, if the button battery is to be fully mercury-free, its safety problem needs to be solved urgently. That is to say, the mercury-free of the button battery faces two major technical bottlenecks of environmental protection and safety. After years of painstaking research, the R&D team of Dongguan Anli Battery Technology Co., Ltd. finally broke the bottleneck of environmental protection and safety during the mercury-free process of button cells in 2011 and announced a new generation of mercury-free buttons that are both safe and environmentally friendly. The button battery was successfully developed. A new generation of mercury-free button batteries abandons the electroplating this backward way, according to the principles of molecular sieves will be attached to the inner surface of the negative cover, a layer of the separator, the role of the separator is equivalent to hydrogen molecular sieve, not only cut off the zinc anode and The contact of the negative electrode cover avoids the hydrogen evolution reaction during storage of the battery. Even if the battery has a slight hydrogen evolution reaction during use, hydrogen molecules can be discharged from the molecular gap of the separator. Therefore, this technical solution not only solves the problem of mercury pollution brought about by the mercury-containing button cells that are currently mainstream in the market, but also overcomes the inherent safety problem of the expansion and explosion of the old generation of mercury-free button batteries. It also solved the problem of environmental pollution caused by the large amount of hexavalent chromium wastewater discharged from the old generation of mercury-free coin cell batteries due to the production process of indium-plated and indium-depleted in the production process, and truly achieved the environmental protection of button batteries. Safety. This major technological breakthrough has been applied for invention patents from the State Intellectual Property Office of China on November 30, 2011 and applied for international patents through the PCT route (International Application No. PCT/CN2011/083260). And has submitted patent applications to the United States, Japan, Germany, the United Kingdom, Hong Kong and other countries and regions. At a time when countries around the world have ratified the “Mining Convention on Mercuryâ€, that is, the International Mercy Ban Convention is about to take effect, the new-generation mercury-free button cell core technology invented by China won the Chinese invention patent authorization on June 19, 2013 ( China Patent No. ZL201110389786.7) Three years later, in 2016, it obtained another US invention patent (US Patent No. US9490498). The breakthrough battery core technology was granted invention patents in China and the United States, respectively, marking that Dongguan Anli Battery Technology Co., Ltd. has taken an important and solid step in the internationalization of patents. In order to realize the industrialization of a new generation of mercury-free button cell battery technology, the innovation team initiated the establishment of Dongguan Anli Battery Technology Co., Ltd. on September 16, 2013. So far, the company has mass-produced eight models of a new generation of patented explosion-proof mercury-free button batteries. The patented product has abandoned the costly rare metal indium on the technical scheme, thus has natural low cost advantages, prominent market competitiveness, and is widely welcomed by the market due to excellent quality and excellent safety. The mass production of a new generation of mercury-free coin cell batteries marks the official opening of a new era of safety and environmental protection for button batteries by Dongguan Anli Battery Technology Co., Ltd. It can be predicted that under the grand strategy of advocating innovation and development and green development in the country, and in the context of the imminent entry into force of the international mercury ban treaty, the “Mining Convention on Mercuryâ€, the overall mercury-free transition of button cells has become a general trend. The mercury-free process of buttoned batteries will certainly accelerate. There is no doubt that the realization of a new generation of mercury-free button cell battery technology will inevitably bring about considerable economic benefits to enterprises and reward the hard work of the innovation team over the years. At the same time, it will also produce significant environmental and social benefits. For countries and humans.
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