Titanium material capacitance battery

Abstract

The invention discloses a titanium material capacitance battery. The titanium material capacitance battery comprises positive plates, negative plates and a shell, wherein a group of positive plates and negative plates or multiple groups of positive plates and negative plates are arranged in the shell; polymer electrolyte is injected into the shell; a sealing hollow layer is reserved in the shell; the positive plates and the negative plates are manufactured by titanium microplates processed by titanium powder and provided with air permeability, or titanium oxide microplates sintered by the titanium powder, or titanium meshed plates, or titanium foil plates, or surface titanized nickel plates; sponge is arranged among the positive plates and the negative plates; the polymer electrolyte is prepared by adding 1.0 to 2.5 percent of C16H33(CH3)N<+> serving as an additive into a lead tetrafluoroborate solution; and the Pb<2+> content is 20 to 35 percent, the free boric acid content is 1.5 to 3.5 percent and the free fluoroboric acid content is 1.0 to 1.5 percent. By adoption of the structure, the titanium material capacitance battery has the advantages of simple process, large capacity, light weight, long life, low cost, safety, environmental friendliness and the like and can be widely applied in the fields of electric vehicles, electric automobiles, buses, power storage stations, aerospace and national defense.

Description

technical field [0001] The invention relates to a new energy battery, in particular to a titanium material capacitor battery which is processed into positive and negative electrodes by titanium material and does not require surface separators and paste of positive and negative electrode materials, and is easy to produce and reduces costs. Background technique [0002] Energy-saving and new energy vehicles are one of the high-tech development directions of automobiles, represent the future development direction of automobiles, and have become new economic growth points and commanding heights of strategic adjustments in the market. Wan Gang, a senior expert in the field of fuel cell vehicles in my country and minister of the Ministry of Science and Technology, put forward the development goal of new energy vehicles: by 2012, 10% of the newly produced vehicles in China will be energy-saving and new energy vehicles, and the annual output of vehicles will be 10 million at that tim...

AI Technical Summary

Problems solved by technology

The energy density of Ni-MH batteries is 0.1-0.2 kwh / kg, which is expensive and has a short driving distance of only 60-80 kilometers. There is no future for electric vehicles.

The energy density of lithium iron phosphate battery is 0.4-0.5 kwh / kg, which is expensive. The battery cost of a car costs 40,000-90,000 yuan, and there is a more expensive 140,000 yuan set, which is poor in cost performance

[0003] Since the charging and discharging process of the above-mentioned battery is a chemical reaction, the electrode involves a reaction from one solid phase to another solid phase, which inevitably includes a complicated electrode reaction process, thereby reducing the performance of the battery. Even if the addition of active materials has little effect on the battery efficiency, The electrode will be corroded during the chemical reaction, the number of charging and discharging is small, and the service life of the electrode is short

Due to the small battery capacity, long charging time, and the need to build large-scale charging stations, it is difficult for electric vehicles to be popularized and used even in cities where local governments have introduced subsidy policies.

[0004] At present, supercapacitor batteries are also produced in China, which are electrochemical supercapacitors. Since supercapacitor batteries are easy to break down, the specific energy is only 0.008 kwh / kg, so they cannot be used in electric vehicles.

In 2008, Zhangjiang, Shanghai launched the first supercapacitor bus in China. Because they use super electrolytic capacitor batteries, there are many shortcomings and problems: first, the internal pressure of ordinary supercapacitor batteries is too low, the energy storage capacity is not too large, and the price Exceeding the lithium battery pack, the power consumption of the bus test is 1.4 kwh / kg, and the mileage is as short as 1-2 kilometers; the second is that the super capacitor battery has a large self-discharge, and it often fails in summer, and the performance of the super capacitor battery increases in leakage and capacity at high temperatures. ,According to the leakage current temperature curve, the electrolytic capacitor battery is close to the technical limit, it is difficult to increase and the price is very high; the third is that the single capacitance is not large, ≦5000F, but the volume is huge, and the batteries need to be used in parallel, which is not an ideal choice for electric vehicles , so supercapacitor batteries cannot be used in electric vehicles

[0005] In response to the above problems, many manufacturers and people of insight have developed and developed, but so far no ideal products have come out.

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