Alkaline Manganese Battery Research Articles

Effect of Na2SiO3 and TEA Electrolyte Additives on the Corrosion Inhibition of Zinc Electrodes and Electrochemical Performance of Rechargeable Alkaline Manganese Batteries

To inhibit hydrogen evolution corrosion, passivation, and zinc dendrite growth during the charging and discharging of the zinc negative electrode of rechargeable alkaline manganese battery containing ultra-fine zinc powders, the effects of the single addition amounts of inorganic corrosion inhibitor Na2SiO3 and organic corrosion inhibitor TEA and their compounding ratio on the corrosion inhibition effect and the charging and discharging performance of alkaline manganese battery were systematically investigated in this paper. SEM and XPS were used to observe the microscopic morphology of the zinc anode, and the inhibition mechanisms of the relevant inhibitors were explored. The results show that, the addition of Na2SiO3 and TEA can synergistically improve the coverage of the protective film, thereby inhibiting hydrogen evolution corrosion, passivation and dendrites of zinc electrodes. Compared to blank electrolyte, when the composite concentration of Na2SiO3 and TEA is 1 g l−1 Na2SiO3+56.25 mg l−1 TEA, the hydrogen evolution corrosion inhibition efficiency can reach 70.56%, the initial specific capacity and the specific capacity after 50 cycles can increase from 160.7 mAh g−1, 58 mAh g−1 to 198.4 mAh g−1, 74 mAh g−1, respectively. This study has great theoretical and engineering value for guiding the design of electrolytes for rechargeable alkaline manganese batteries.

Preparation of ultrafine BaBi2O6 and its modification effect on EMD electrode of rechargeable alkaline manganese battery

Preparation of ultrafine BaBi2O6 and its modification effect on EMD electrode of rechargeable alkaline manganese battery

Preparation and Electrochemical Properties of Zinc Electrode for Alkaline Manganese Batteries Containing Ultrafine Zinc Powders

Submicron spherical zinc powders with high surface area, activity and low cost were prepared by DC arc plasma evaporation method. Based on the characterization of morphology, particle size and composition of ultrafine zinc powder, the effects of addition amount of PTFE and compounding of PTFE with PAAs and CMCs, electrolyte addition amount, compound mass ratio of flake and spherical zinc powder on the discharge performance of zinc electrode had been systematically studied. The results showed that ultrafine zinc powder was polycrystalline, spherical and its purity reached 99.96wt%. Under 0.2C, the discharge capacity reached 577.5mAh when addition of PTFE was 10wt.%. When 2.5wt.% PTFE was compound with 6.5wt.%(PAAs: CMCs = 2:1), the discharge capacity improved which reached 613.4 mAh. The discharge capacity was 580.3mAh when the electrolyte content was 38wt.%. When the mass ratio of special flake zinc powder to spherical zinc powder was 3:7, the discharge capacity reached 664.1 mAh, it was 13.5% higher than 584.9 mAh of pure spherical zinc powder and 22.6% higher than 541.5 mAh of pure flake zinc powder. Under 1.8C, compared with alkaline manganese battery prepared using flake zinc powders, the mass specific capacity increased by 57.12% and the volume specific capacity increased by 187.79%.

Intrinsically stretchable and rechargeable batteries for self-powered stretchable electronics

Stretchable electronic circuits conform to irregular three dimensional surfaces. They are formed with soft materials and contain electronic circuits, sensors, and other components. We report on a soft matter based rechargeable electrochemical power storage element for such devices. The chemistry is based on a rechargeable alkaline manganese battery concept. The cells withstand more than 700 mechanical stretch relaxation cycles up to 25% strain, with an average cell capacity of 6.5 mA h. Combined with wireless power transmission or stretchable solar cells, the rechargeable battery can be used to store and supply energy in stretchable electronic devices.

The Synthesis of High Functional Material from Spent Alkaline Manganese Battery

The Synthesis of High Functional Material from Spent Alkaline Manganese Battery

휴대전화기용 아연공기전지 개발

In recent years, the rapid growth of portable electronic devices requires the high-energy density characteristics of batteries. Zinc air batteries have specific capacity as high as 820mAh/g. However, Zinc air batteries used for hearing aid applications only so far, because the atmosphere could affect it, and it has weakness in the rate capability. However, recent developments of electrode manufacturing technologies made us to overcome that weakness. And the efforts of applying zinc air batteries to portable electronic devices, especially in cellular phone application have been increased. In this paper, the effects of conducting material and polymer binder in cathode on the electrochemical characteristics were investigated. Our research team succeeded in producing 2.4Ah class zinc air battery for cellular phone application. Its volumetric energy density was 920 wh/l, and gravimetric energy density was 308 wh/kg. The volumetric energy density of our zinc air battery is two times higher than one of lithium secondary battery, and three times higher than that of alkaline manganese battery.

Environmentally friendly batteries by addition of chitin

In this paper we describe the results of a research performed on pen alkaline-manganese batteries with the aim of checking the possibility of minimizing the release of metals from them when, exhausted, are disposed. This goal was temptatively looked for on inserting in the batteries a certain amount of chitin able to bind the metal ions formed by the natural oxidation of the metals contained in the batteries and by the acid rain dissolving action. The obtained results show that 1.2 g of chitin for each middle size pen model alkaline-manganese battery practically prevent any release of metals, without relevant change of the discharge curve of the battery. The effect of the addition is particularly marked if realised by the additive as contained in a PVC membrane.

Surface-modified manganese dioxide for alkaline-manganese battery

ABSTRACTThe surface-modification of manganese dioxide has been carried out for the purpose of increasing the discharge capacity of alkaline manganese battery. The characteristics of the obtained material has been investigated by using XAFS (X-ray absorption fine structure), Raman spectroscopy and ESR. It seems that composite oxide of Ti and Mn is formed on the surface of the surface-modified manganese dioxide (SMMD) particles. XRD measurement data on the discharged product demonstrates that SMMD suppresses the byproduct, and discharge characteristics of SMMD is improved compared to the conventional manganese dioxide.

Mercury Free Zinc Alloy Powder for Alkaline Manganese Battery II. Effect of Additive Species to Zinc Particle on Suppressing Hydrogen Gas Evolution

Mercury Free Zinc Alloy Powder for Alkaline Manganese Battery II. Effect of Additive Species to Zinc Particle on Suppressing Hydrogen Gas Evolution

Mercury-free Zinc Alloy Powder for Alkaline Manganese Battery I. The Effect of Additives to Zinc Powder Surface on the Discharge Characteristics of Alkaline Manganese Battery

Mercury-free Zinc Alloy Powder for Alkaline Manganese Battery I. The Effect of Additives to Zinc Powder Surface on the Discharge Characteristics of Alkaline Manganese Battery

Alkaline manganese battery: Mototani Yuji; Asaoka Junichi; Tanaka Hitoshi Yawata, Japan assigned to Matsushita Electric Industrial Co Ltd

Alkaline manganese battery: Mototani Yuji; Asaoka Junichi; Tanaka Hitoshi Yawata, Japan assigned to Matsushita Electric Industrial Co Ltd

Gas evolution behavior of Zn alloy powder in KOH solution

To reduce the mercury content in an alkaline manganese battery, a Zn alloy is used. In the absence or presence of small amounts of mercury, hydrogen gas evolution from the Zn alloy in KOH solution was found to be accelerated by the addition of ZnO or Zn(OH) 2 which is the discharge product of Zn. Partly discharged Zn alloy also evolved hydrogen more vigorously compared to undischarged Zn alloy. An optimum quantity of In 2O 3 added to the Zn reduced hydrogen evolution. Indium metal deposited on Zn by the reduction of In 2O 3 by Zn will suppress hydrogen evolution because of its large overpotential for the hydrogen evolution reaction. Indium metal was detected by X-ray diffraction analysis of the Zn alloy containing In 2O 3.