Battery environmental protection and nickel-metal hydrogen batteries are not environmental protection what is the difference?

Lithium batteries contain harmful substances such as lithium hexafluorophosphate, which can cause serious pollution to the environment and the ecosystem. Heavy metals such as cobalt, manganese, and copper can also be harmful to humans through the accumulation of biological chains. Compared with lead-acid batteries, nickel-metal hydride batteries have relatively low environmental pollution, mainly some acid-base exhaust gases, and harmful ones are mainly HCl. There should be no problem in the implementation of environmental protection measures.

Environmental protection battery refers to a type of high-performance, pollution-free battery that has been put into use or is under development in recent years. Metal hydride nickel batteries, lithium-ion batteries and mercury-free alkaline zinc manganese cells and rechargeable batteries that are being promoted for use, as well as lithium or lithium-ion plastic batteries and fuel cells that are being developed and developed, all fall into this category. In addition, solar cells(also known as photovoltaic power generation), which are now widely used and use solar energy for photoelectric conversion, can also be included in this category.

The metal hydride nickel battery(Ni-MH) has the same operating voltage(1.2 V) as the cadmium nickel battery(NI-CD), but it replaces the carcinogen cadmium due to the use of rare earth alloys or tini alloy hydrogen storage materials as negative polar active substances. Not only does this new type of battery become a green and environmentally friendly battery, but it also increases the specific energy of the battery by nearly 40 %, reaching 60-80 wh/kg and 210-240 wh/l. This type of battery was gradually industrialized in the early 1990s and was first used in mobile phone batteries. Although its dominance in mobile phones has gradually been replaced by lithium-ion batteries, its market share in European and American mobile phone applications is still about 50 %.

The lithium-ion battery(Li-ion) is a negative electrode that allows lithium ions to be embedded and de-embedded in carbon, and reversible lithium-embedded metal oxides to be positive. Linio2 or limn2o4) and organic electrolytes have a working voltage of 3.6 V, so a lithium-ion battery is equivalent to three nickel cadmium or metal hydride nickel batteries. As a result, the specific energy of this battery can exceed 100 wh/kg and 280 wh/l, which in turn greatly exceeds the specific energy of the metal hydride nickel battery. In view of the above advantages, production and use have increased at a very high rate since the short period of 1993-2000.

Alkaline zinc-manganese dry batteries(alkaline) have higher capacity than ordinary dry batteries of the same size and have the ability to discharge large currents. Mercury-free zinc powder has been used, making this battery a green battery and a mainstream product in primary batteries. Currently, alkaline zinc and manganese dry batteries are still the most used power sources for BP machines. At the same time, countries around the world are also concerned about the charging of such batteries. A U.S. company has introduced rechargeable alkaline manganese batteries, and product applications are slowly growing. This type of battery maintains the discharge characteristics of the primary battery and can be recharged dozens to several hundred times(deep discharge cycle life is about 25 times).

Lithium plastic battery(lip) is a new type of battery with metal lithium as a negative electrode and conductive polymer as an electrolyte. Its specific energy has reached 170wh/kg and 350wh/l. Lithium-ion plastic batteries store organic electrolytes in lithium ion batteries in a polymer membrane, or use conductive polymers as electrolytes to make batteries free of free electrolytes. This kind of battery can be used aluminum plastic composite film to achieve thermal pressure packaging, with light weight, shape can be arbitrarily changed, better safety characteristics.

Fuel cell(FC) is a device that uses fuel(such as hydrogen or fuel) and oxidants(such as pure oxygen or oxygen in the air) to generate electricity directly and continuously, because it avoids the restrictions of the Carnot cycle. This power generation device is not only efficient(electrochemical conversion efficiency can be as high as 40 %), but also pollution-free gas discharge, so it is an efficient and clean power generation method in the future. Many companies at home and abroad are committed to developing Pem fuel cells suitable for mobile phones and notebook computers. Once they are put into use, their economic benefits are great.

Sealed lead-acid battery is a type of lead-acid battery.

The following new green battery technologies and related industries have developed particularly rapidly.

1.Hydrogen storage materials and metal hydride nickel hydride batteries(Ni-mhrechargeablebattery)

2. Lithium-ion embedded material and liquid electrolyte lithium ion battery

3. Polymer electrolyte lithium battery or lithium ion battery

4. Zinc Air Cell and Pem Fuel Cell

Researchers in Jerusalem developed the so-called potato battery, which involves inserting zinc and copper electrodes into a boiled potato. Simple cooking can turn electricity into 10 times as much. Potato batteries have the opportunity to become a cheap and widely available source of electricity in developing countries. It is a truly green battery. Yissum R&D offers this technology to any interested developing country for free. Although there is a large gap between the power storage and the lithium battery we are accustomed to, it is completely 100 % environmentally friendly.

Yissum research and development, using technology from the Hebrew University of Jerusalem, is developing a new battery called "Solidorganicelectricbatterybasedupontreatedpotatoes(solid organic batteries based on potato coating)", which is simply a potato powered battery. Such batteries provide a simple, sustainable and reliable low-cost solution to the demand for electricity in areas of the world that lack power facilities.

Researchers at the University of Hebrew found that potato coating enhances the ability of salt bridges, so a potato coated battery generates ten times as much electricity as a potato coated battery. Cost analysis shows that the new batteries are 5 to 50 times cheaper than existing commercial batteries such as 1.5 VoltD batteries and Energizer E91 batteries. [ 1 Batteries generally contain heavy metal elements such as mercury, lead, cadmium, etc.; These are heavy metal elements that are highly toxic and pollute water and soil. Batteries that rarely contain heavy metals or do not contain heavy metals are environmentally friendly(said to be environmentally friendly, who knows that the ring is not environmentally friendly). For example, alkaline 5 batteries on the market now have low Mercury and non-mercury. These non-mercury batteries are environmentally friendly batteries.

Environmental protection battery refers to a type of high-performance, pollution-free battery that has been put into use or is under development in recent years. Metal hydride nickel batteries, lithium-ion batteries and mercury-free alkaline zinc manganese cells and rechargeable batteries that are being promoted for use, as well as lithium or lithium-ion plastic batteries and fuel cells that are being developed and developed, all fall into this category. In addition, solar cells(also known as photovoltaic power generation), which are now widely used and use solar energy for photoelectric conversion, can also be included in this category.

The metal hydride nickel battery(Ni-MH) has the same operating voltage(1.2 V) as the cadmium nickel battery(ni-cd), but it replaces the carcinogen cadmium due to the use of rare earth alloys or tini alloy hydrogen storage materials as negative polar active substances. Not only does this new type of battery become a green and environmentally friendly battery, but it also increases the specific energy of the battery by nearly 40 %, reaching 60-80 wh/kg and 210-240 wh/l. This type of battery was gradually industrialized in the early 1990s and was first used in mobile phone batteries. Although its dominance in mobile phones has gradually been replaced by lithium-ion batteries, its market share in European and American mobile phone applications is still about 50 %.

The lithium-ion battery(Li-ion) is a negative electrode that allows lithium ions to be embedded and de-embedded in carbon, and reversible lithium-embedded metal oxides to be positive. Linio2 or limn2o4) and organic electrolytes have a working voltage of 3.6 V, so a lithium-ion battery is equivalent to three nickel cadmium or metal hydride nickel batteries. As a result, the specific energy of this battery can exceed 100 wh/kg and 280 wh/l, which in turn greatly exceeds the specific energy of the metal hydride nickel battery. In view of the above advantages, production and use have increased at a very high rate since the short period of 1993-2000.

Polarization process: In these several stages, there is no relatively large pollution in the mainstream domestic system of lithium iron phosphate, or even the three-way system. Of course, the three-way system may still have certain pollution with lithium cobalt acid. For example, cobalt, manganese, and nickel are all heavy metals, but they are still relatively environmentally friendly. Among them, lithium iron phosphate is the most environmentally friendly. The remaining part, in addition to the pollution of the above mentioned material, the solvent in the injection solution is mainly annular / chain carbonate or carboxylic acid Ester. The solute is mainly lithium salt, lithium hexafluorophosphate, additives are mainly membrane additives, flame retardant additives, conductive additives, and improved low-temperature discharge additives. The whole process is fine, too. Of course, the chemical agent, without paying attention to its control, must be contaminated with the environment. As for the final encapsulation and transformation, the pollution is even less.

3. Talk about the recycling part of the lithium cobalt acid and ternary system, of course, there is still a need for recycling, after all, it contains heavy metals. However, lithium iron phosphate, except for internal electrolytes, etc., is basically harmless. Compared with other batteries, it does not produce any toxic and harmful metal elements and substances such as lead, Mercury, and cadmium, so the pollution is relatively small. However, substances in used lithium ion batteries can still cause heavy metal nickel, cobalt pollution(including arsenic), fluorine pollution, organic pollution, dust and acid-base pollution. The electrolytes and transformation products of used lithium ion batteries, such as LiPF6, LiAsF6, LiCF3S03, HF, P201, etc., solvents and their decomposition and hydrolysis products, such as DME, methanol, formic acid, etc., are toxic and harmful substances. It is still necessary to send used lithium batteries to a qualified place for unified treatment, not discarded at will.

1. Positive and negative polar fluid, generally, positive aluminum foil, negative copper foil, and may also weld some nickel bands for electrical connection. These are basically not toxic. Some of the old lithium battery recycling units that have emerged now rely on recycling these and steel shell aluminum shells to make money. Label: recyclable, non-polluting.

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