Comparison between lead-carbon batteries and lithium batteries

Lead carbon battery

Lead carbon is a new type of super battery, battery is a lead-acid battery and super capacitor combination: both played a super capacitor moment both the advantages of large capacity rechargeable also played a lead-acid battery than energy advantage, and have very good charge-discharge performance - 90 minutes to charge (lead-acid battery if such a charge, discharge, life less than 30 times).And because of the added carbon (graphene), to prevent the phenomenon of cathode sulphates and improved the battery failure of a factor in the past, more longer battery life. Lead carbon batteries are asymmetric supercapacitors with lead-acid battery using mixtures in parallel combination of both, as a new type of super batteries, carbon batteries is to lead lead-acid battery and super capacitor, the fusion technology is a kind of capacitance characteristics and dual function with battery characteristics energy storage battery. So both played a super capacitor instantly work spontaneously and the advantages of large capacity rechargeable also made use of the advantages of lead-acid battery energy, an hour can be fully charged. Have good charge and discharge performance. Carbon technology with the use of lead, lead the carbon battery performance is much better than the traditional lead-acid battery, can be applied to new energy vehicles, such as: hybrid and electric vehicles, electric bicycles, and other fields; Can also be used to the new field of energy storage, such as scenery power generation energy storage, etc. Lead - carbon batteries have similar to conventional lead-acid battery is low price advantage and mature industrial manufacturing base, in various application fields has a strong competitive advantage.

The hybrid technology can quickly during vehicle acceleration and braking charge output and input, particularly suitable for micro hybrid "stop a start" system. Lead carbon batteries can improve the power of original lead-acid battery, prolong service life.

Features:

Technical advantages

Lead carbon batteries is the innovation of the lead-acid battery technology, compared with lead-acid battery has many advantages;

Lead battery has the following advantages:

One is the fast charging, 8 times charging speed; Second, the discharge power increased 3 times; Three is circle life up to 6 times, charging circuit number up to 2000 times; Four is cost-effective, than lead-acid battery prices have improved, but the life of the recycled greatly improved; Five is the use of safe and stable, can be widely used in all kinds of new energy and energy efficiency. In addition, the lead carbon batteries also giving full play to the advantages of the lead-acid battery than energy, and have very good charge and discharge performance - 90 minutes to charge (lead-acid battery if such a charge, discharge, life less than 30 times).And because of the added carbon (graphene), to prevent the phenomenon of cathode sulphates and improved the battery failure of a factor.

1, is the cathode lead paste using unique formula and optimizing curing process. The positive active material softening resistance is strong, deep cycle life is good, to improve the utilization of active material; The cathode lead paste sulfide resistant capability is strong, low capacity attenuation rate, low temperature start performance is good.

2, positive plate gate adopt new special alloy and reasonable structural design, good corrosion resistance, the current distribution is reasonable, close integration with the active material, large current charging performance and accept ability.

3, using new electrolyte additives, battery high hydrogen evolution and oxygen evolution potential, the battery is not easy to water loss

4, when the battery in frequent instantaneous large current charging and discharging work, mainly by the capacitance characteristics of carbon materials release or receive current, the inhibition of the lead-acid battery cathode sulphates, effectively prolong the service life of the battery;

5, when the battery is in low current job for a long time, mainly by the sponge lead anode work, continue to provide energy;

6, Lead - super carbon composite electrode the intervention of high carbon content, make the electrode than conventional lead-acid batteries have better low temperature starting ability, charge acceptance ability and large current charge and discharge performance.

Performance, lead the carbon battery at the same time has the characteristics of lead-acid batteries and capacitors. The addition of activated carbon, improve the battery power density, longer cycle life, due to occupied part of activated carbon electrode space at the same time, results in the decrease of energy density, also may increase gas electrode analysis. In the process, the addition of activated carbon, increase the mixing and sheet coated difficulty. In general, lead battery performance is better than that of ordinary lead-acid batteries, carbon is a kind of advanced lead-acid batteries, as well as the mainstream direction of lead-acid battery technology development.

Lead the battery is lead-acid storage battery carbon * in the field of technology, is also the international focus on the development of new energy storage industry, has a very broad application prospects. Energy storage battery technology is one of the key technologies for the development of new energy storage industry. Photovoltaic power plant energy storage, energy storage and wind power grid peak shaving, and other areas of the energy storage, battery with large power density, long cycle life and low price.

"The lithium battery", is a kind of lithium metal or lithium alloy anode materials, the use of water electrolyte solution of the battery. Lithium batteries * by early 1912 GilbertN. Lewis is put forward in this study. In the 1970 s, M.S.W hittingham and began to study are put forward lithium ion batteries. Due to the lithium chemistry is very lively, making lithium metal processing, storage, use, very high demand on the environment. So, the lithium battery has not been applied for a long time. With the development of science and technology, the lithium battery has now become the mainstream.

Lithium battery can be roughly divided into two categories: lithium battery and lithium ion batteries. Lithium ion battery does not contain lithium metal state, and can be recharged. The fifth generation of rechargeable battery product lithium battery was born in 1996, its security, specific capacity, self-discharge rate and cost performance is better than that of lithium ion batteries. Because of its high technical requirements limit, now only a few countries in the production of this kind of lithium battery. The working principle of

Lithium battery:

Lithium batteries are generally use lithium manganese dioxide as positive pole material, metal or its alloy metal anode materials for batteries, the use of water electrolyte solution.

Battery structure

Lithium battery usually has two features: cylindrical and square. Inside the battery adopts spiral winding structure, with a very fine permeability and strong polyethylene film interval between positive and negative isolation material. The anode including by cobalt acid lithium (nickel or cobalt acid lithium, manganese acid lithium, lithium iron phosphate, etc.) and current collector composed of aluminum foil. The cathode with graphitized carbon material and the current collector is copper foil. Inside the battery charger has organic electrolyte solution. It is also equipped with safety relief valves and PTC element cylindrical use (part), so that the battery in the abnormal state and the output short circuit protect cells from damage.

Single section of lithium battery voltage of 3.7 V (3.2 V lithium iron phosphate anode), battery capacity is not likely to infinite, therefore, will be a single section often lithium battery series, in parallel processing, in order to meet the requirements of different occasions.

The explosion cause

1, internal polarization is larger;

2, water absorption, react with the electrolyte gas drum;

3, electrolyte itself quality, and performance issues;

4, when liquid injection liquid quantity cannot meet the technical requirements;

5, preparation process of laser welding sealing performance is poor, when measuring leak leakage;

6, dust, dust sheet first can cause micro short circuit;

7, is a process from the cathode scope thick, hard into the shell;

8, filler sealing problem, steel ball seal performance is bad to cause gas drum;

9, the incoming exist shell wall thick, shell thickness deformation effect;

10, the outside temperature is the main cause of the explosion.

Battery application

With the development of microelectronics technology in the 20th century, increasing miniaturization of equipment puts forward high demands on the power supply. Then entered the practical stage has large-scale lithium-ion batteries.

* to early application is lithium battery, used in cardiac pacemaker. Due to the lithium battery self-discharge rate is extremely low, discharge voltage is very gentle. That makes it possible to pacemaker implantation in the human body use for a long time.

Lithium manganese batteries tend to have higher than the nominal voltage of 3.0 v, is more suitable for integrated circuit power, widely used in computers, calculators and watches.

Lithium ion batteries used in mobile phones, laptops, electric tools, electric car, street lamp standby power, navigation lights, small household electrical appliances, can be said to be * application group.

Lead battery has the following features:

1. Lead the carbon battery discharge depth is 60%, recycled more than 3000 times (test has yet to end).

Carbon batteries 2. Lead in partial charged state (PSoC), inhibits the cathode sulfate production, will not fail due to lack of charging battery.(the cathode produce sulfate crystallization is one of the common causes of failure of valve control type lead acid batteries.)

3. Lead carbon batteries work temperature range is very wide: - 23 ℃ to 60 ℃.

4. Lead battery to join carbon has good thermal conductivity, so lead carbon battery is suitable for high temperature work.

5. Lead carbon battery discharge performance at low temperature is higher than conventional lead-acid batteries. Traditional lead-acid battery in - 20 ℃ the discharge capacity of only 50%, lead, carbon batteries discharge capacity can reach 66% under the same temperature.

6. Traditional lead-acid battery charge * have to 0.2 C (charging standard is 0.1 C).Lead the carbon battery charge acceptable * 0.6 C (standard charge is 0.3 C), the charging current is 3 times of traditional lead-acid batteries, can greatly shorten the charging time, especially suitable for charging the solar system is not stable.

7. Lead most of the carbon battery is a former terminal battery or horizontal batteries, battery in front connection, maintenance is convenient. Battery does not need to maintain a space between layer and layer, can save installation space. The main advantage of the lithium battery:

The characteristics of lithium battery:

1, high lithium battery voltage platform: monomer battery voltage to an average of 3.7 V or 3.2 V, is approximately equal to three nickel cadmium battery or nickel metal hydride batteries in series voltage, easy to battery power team;

2, lithium battery service life is relatively long, service life can reach more than 6 years, lithium iron phosphate for positive cells in 1 cdod charged to put, can use the record of 1000;

Three, have high power tolerance, including electric cars with lithium iron phosphate lithium ion battery can reach 15 to 30 c the ability to charge and discharge, is advantageous for the high strength of starting and accelerating;

4, low self-discharge, no memory effect;

5, strong adaptability to high and low temperature lithium battery, can be in - 20 ℃, 60 ℃ under the environment of use, through technology on the processing, can be used in - 45 ℃ environment;

6, green environmental protection, regardless of the production, use and scrap, does not contain, nor have any poisonous and harmful heavy metals such as lead, mercury, cadmium and material.

The disadvantage of lithium battery:

Lithium-ion batteries have poor safety, there is a risk of explosion.

Cobalt acid lithium materials of lithium battery can't large current discharge, poor security.

Lithium batteries must protect circuit, to prevent the battery was too charge discharge.

High requirement and high cost.

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