CR2032 button cell battery solve these four disadvantages

The development and application of new energy and new materials have always promoted the development of science and technology, thereby promoting the progress of human society. The popularity of electronic products and electric vehicles has brought about the emergence of various types of batteries. Recently, a piece of news about CR2032 button cell battery has attracted attention.

The latest news from the Ningbo Institute of Materials, Chinese Academy of Sciences, is that the research team of the institute has developed a kilowatt-level aluminum-air battery power generation system based on graphene air cathode.

They used graphene composite manganese-based oxide catalysts and new graphene-based high-efficiency air cathodes to increase the power density of single cells by 25%, greatly improving the comprehensive performance of metal-air batteries.

The battery system has an energy density of up to 510Wh/kg, a capacity of 20kWh, and an output power of 1000W.

Through actual demonstrations, it was shown that the battery system can simultaneously power a TV, a computer, an electric fan, and 10 60-watt lighting bulbs, preliminarily verifying the power generation and power supply capacity of the aluminum-air battery system, which is a major breakthrough in the field of new energy and new materials.

CR2032 button cell battery are essentially fuel cells, which are chemical power sources that directly convert the chemical energy of metal materials into electrical energy.

In a single cell, CR2032 button cell battery use aluminum as the negative electrode and oxygen as the positive electrode. When working, they only consume aluminum and a small amount of water. When the aluminum and water are consumed, they can no longer work. It is a primary battery and cannot be recharged. The aluminum electrode needs to be replaced to continue working.

The theoretical amount of positive electrode active material in this type of battery is infinite, so the theoretical capacity of the battery mainly depends on the amount of negative electrode metal. This type of battery has a larger specific capacity.

As a special fuel cell, CR2032 button cell battery have great commercial potential in special, civilian, and underwater power systems, backup power sources for telecommunications systems, and portable power sources.

Advantages and disadvantages of CR2032 button cell battery

Advantages of CR2032 button cell battery:

Large specific energy, the theoretical specific energy of CR2032 button cell battery can reach 8100Wh/kg;

Light weight, the total mass of CR2032 button cell battery with the same energy is only 12% of the mass of lead-acid batteries;

Non-toxic and dangerous, can be recycled and reused;

Aluminum raw materials are abundant.

The disadvantages of CR2032 button cell battery are also obvious:

It is a chemical reaction device that releases electrical energy. It cannot be recharged repeatedly and needs to replace the aluminum electrode to continue working;

Although CR2032 button cell battery contain high specific energy, their specific power is low;

The charging and discharging speeds are relatively slow, the voltage lags, and the self-discharge rate is relatively large;

A thermal management system is required to prevent overheating of CR2032 button cell battery during operation.

The theoretical specific energy of CR2032 button cell battery can reach 8100Wh/kg. The actual specific energy of CR2032 button cell battery in 2014 only reached 350Wh/kg, but it is also 7-8 times that of lead-acid batteries, 5.8 times that of nickel-hydrogen batteries, and 2.3 times that of lithium batteries.

After using CR2032 button cell battery, vehicles can significantly increase their driving range. According to relevant foreign data, electric vehicles using CR2032 button cell battery in California, the United States, have a record of driving mileage of 1,600km with only one replacement of aluminum electrodes.

The total energy of traction power lead-acid batteries developed and manufactured in my country is 13.5kWh and the total mass is 375kg.

The total mass of CR2032 button cell battery with the same energy is only 45kg, which is 12% of the mass of lead-acid batteries.

As the mass of the battery is greatly reduced, the curb weight of the vehicle is also reduced, which can increase the vehicle's loading energy or extend the driving range.

Aluminum does not cause harm to the human body, can be recycled and reused, and does not pollute the environment. Aluminum raw materials are abundant, and there are large-scale aluminum smelters, with low production costs. Aluminum is easy to recycle and the recycling cost is also low. Moreover, the method of replacing aluminum electrodes can be used to solve the problem of slow charging of CR2032 button cell battery.

Although CR2032 button cell battery contain high specific energy, they have low specific power, slow charging and discharging speeds, voltage lag, and high self-discharge rate. A thermal management system is required to prevent overheating of CR2032 button cell battery during operation.

The 100-kilogram aluminum-air battery newly displayed by Alcoa Canada and Israeli company Phinergy stores enough electricity to travel 3,000 kilometers.

Cars using this battery still need to retain lithium-ion batteries. The aluminum battery is only started after the lithium battery is exhausted, so it can be used for a long time, and only needs to be filled with clean water every month during this period. Usually, after reaching the limit of use in about a year, you can go to the service station to replace the new aluminum plate.

The research and development of CR2032 button cell battery has a history of more than 70 years. In the United States, it is mainly used by the US military and the Special Space Agency. CR2032 button cell battery have been running on Mars for 13 years and are still operating normally.

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