Desulfurization method for liquid-cooled energy storage lead-acid batteries

A facile method for the desulfuration of a waste lead-acid battery paste was proposed, in which tartaric acid-sodium tartrate was used as the leaching agent to yield lead …

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What is a direct desulfurizer for lead paste?

NaOH was used as the direct desulfurizer for lead paste, and lime was used to regenerate NaOH from the mother liquid at sufficient concentrations for desulfurization.

How much desulfurizer is required for sodium-calcium double alkali lead paste slurry?

Hence, based on the minimum specific gravity of industrial lead paste slurry, the concentration of desulfurizer required for sodium-calcium double alkali lead paste desulfurization was estimated to be at least 2.32 mol/L. 3.2. Mechanism of a novel process of lead paste pre-desulfurization

How to desulfurize lead paste by regenerated alkali?

The desulfurization of lead paste by regenerated alkali was as follows: (i) desulfurization was conducted by adding waste lead paste to a beaker containing a certain volume of regenerated NaOH solution and stirred. (ii) After the desulfurization reaction was complete, filter residue and filtrate were obtained by vacuum filtration.

Is the pre-desulfurization process for lead paste economically feasible?

Thus, the proposed pre-desulfurization process for lead paste using the Na-Ca double alkali method is economically feasible in industrial applications. A pilot-scale experiment would be necessary to predict the economic benefit more precisely for future large-scale industrial application.

Why are lead–acid batteries important to modern society?

Lead–acid batteries are important to modern society because of their wide usage and low cost. The primary source for production of new lead–acid batteries is from recycling spent lead–acid batteries. In spent lead–acid batteries, lead is primarily present as lead pastes.

How does sodium-calcium double-alkali lead paste pre-desulfurization work?

The new sodium-calcium double-alkali lead paste pre-desulfurization process proposed in this paper involved the direct reaction of lead paste with NaOH solution. Relatively cheap lime was reacted with the mother liquor, the sodium sulfate produced by desulfurization, to regenerate NaOH.

A novel process combined with flue-gas desulfurization …

A facile method for the desulfuration of a waste lead-acid battery paste was proposed, in which tartaric acid-sodium tartrate was used as the leaching agent to yield lead …

Desulfurization of liquid-cooled lead-acid batteries

In this paper, a novel approach to recover lead oxide from spent lead acid batteries by desulfurization and crystallization in sodium hydroxide solution after sulfation was …

Lead–Acid Batteries

If such battery was opened or punctured, there would be a free liquid electrolyte spill, which makes flooded lead–acid batteries hazardous because of the significant content of liquid corrosive acid. The other emerging configurations include sealed lead–acid, gelled electrolyte, invented in 1957 by Otto Jache, and Absorbed Glass Mat (AGM), patented …

Ultra‐Fast Recyclable and Value‐Added Desulfation Method for …

Herein, dual rotating liquid film reactors (RLFRs) and lime are proposed to construct a recyclable, ultra-fast, and value-added desulfation method. Parameter optimization …

Ultra‐Fast Recyclable and Value‐Added Desulfation Method for Spent Lead ...

Herein, dual rotating liquid film reactors (RLFRs) and lime are proposed to construct a recyclable, ultra-fast, and value-added desulfation method. Parameter optimization and kinetic calculations prove that the above reactions are controlled by internal diffusion, revealing that RLFR promotes the mass transfer and reaction rate. The new process ...

CN105950870A

The invention discloses a hydrothermal deep conversion desulfurization method for waste lead plaster of a lead-acid storage battery. The method includes the steps that the waste...

Optimization of liquid cooled heat dissipation structure for …

This indicated that Method 1, based on NSGA-II, had the best performance in optimizing the liquid cooled heat dissipation structure of vehicle energy storage batteries. The paper further studied the long-term reliability considerations and compared the material degradation rate, corrosion rate, and battery life before and after optimization, as shown in …

Efficient Desulfurizer Recycling during Spent Lead–Acid Batteries …

Recycling of spent lead-acid batteries (LABs) is extremely urgent in view of environmental protection and resources reuse. The current challenge is to reduce high consumption of chemical reagents. Herein, a closed-loop spent LABs paste (SLBP) recovery …

Preparation of High Purity Lead Oxide from Spent Lead Acid …

This paper reports a new method of direct recovery of highly pure lead oxide (PbO) from waste lead pastes and lead grids of spent lead–acid batteries via catalytic …

Progress in Waste Lead Paste Recycling Technology from Spent Lead–Acid …

The incorporation of lead into most consumer items such as gasoline, paints, and welding materials is generally prohibited. However, lead–acid batteries (LABs) have become popular and have emerged as a major area where lead is utilized. Appropriate recycling technologies and the safe disposal of LABs (which contain approximately 65% lead) and lead …

Efficient Desulfurizer Recycling during Spent Lead–Acid Batteries …

Experimental and DFT calculations verify that MoO4 2− competes Pb/Ca ions and weakens the metal-oxygen bond of PbSO4/CaSO4.2H2O in SLBP, facilitating PbMoO4/CaMoO4 formation …

A novel approach to recover lead oxide from spent lead acid …

In this paper, a novel approach to recover PbO from lead pastes of spent lead acid batteries by desulfurization and crystallization in sodium hydroxide (NaOH) solution after …

Preparation of High Purity Lead Oxide from Spent Lead Acid Batteries ...

This paper reports a new method of direct recovery of highly pure lead oxide (PbO) from waste lead pastes and lead grids of spent lead–acid batteries via catalytic conversion, desulfurization, and recrystallization processes in sequence. On the basis of the analytical results of lead (Pb) and lead dioxide (PbO2) contents in the scrap lead paste, a certain amount of …

Efficient Desulfurizer Recycling during Spent Lead–Acid Batteries …

Experimental and DFT calculations verify that MoO4 2− competes Pb/Ca ions and weakens the metal-oxygen bond of PbSO4/CaSO4.2H2O in SLBP, facilitating PbMoO4/CaMoO4 formation and 99.13 wt% of 2 SO4 − elimination. Pb of 99.97 wt% is obtained as zero-carbon precursors (PbO2 and PbMoO4) by green leaching coupled with re-crystallization.

Liquid air energy storage – A critical review

PHS - pumped hydro energy storage; FES - flywheel energy storage; CAES - compressed air energy storage, including adiabatic and diabatic CAES; LAES - liquid air energy storage; SMES - superconducting magnetic energy storage; Pb – lead-acid battery; VRF: vanadium redox flow battery. The superscript ''☆'' represents a positive influence on the environment.

Structure optimization of liquid-cooled lithium-ion batteries …

Structure optimization of liquid-cooled lithium-ion batteries based on particle swarm algorithm Zhihao Song ... energy storage, and uninterruptible power supply systems[23]. Lead-acid ...

Lead-Carbon Batteries toward Future Energy Storage: From

The lead acid battery has been a dominant device in large-scale energy storage systems since its invention in 1859. It has been the most successful commercialized aqueous electrochemical energy storage system ever since. In addition, this type of battery has witnessed the emergence and development of modern electricity-powered society. Nevertheless, lead acid batteries …

Battery Desulfation Tutorial | ChargingChargers

A typical lead acid battery cell has two plate types, one of lead and one of lead dioxide, both in contact with the sulfuric acid electrolyte as either a liquid, absorbed in a mat (AGM), or a gel. The lead dioxide (PbO 2 ) plate reacts with the sulfuric acid (H 2 SO 4 ) electrolyte resulting in hydrogen ions and oxygen ions (which make water) and lead sulfate (PbSO 4 ) on the plate.

Preparation of High Purity Lead Oxide from Spent Lead Acid Batteries ...

A novel process combined with flue-gas desulfurization …

A facile method for the desulfuration of a waste lead-acid battery paste was proposed, in which tartaric acid-sodium tartrate was used as the leaching agent to yield lead tartrate...

Analysis of a more sustainable method for recycling waste lead ...

To address the urgent demand for improved efficiency and decreased energy consumption in lead paste pre-desulfurization, this paper presents a new lead paste pre-desulfurization process that uses a sodium-calcium double alkali method. NaOH was used as the direct desulfurizer for lead paste, and lime was used to regenerate NaOH from the mother ...

Lead batteries for utility energy storage: A review

Lead-Acid Battery Consortium, Durham NC, USA A R T I C L E I N F O Article Energy history: Received 10 October 2017 Received in revised form 8 November 2017 Accepted 9 November 2017 Available online 15 November 2017 Keywords: Energy storage system Lead–acid batteries Renewable energy storage Utility storage systems Electricity networks A …

A novel approach to recover lead oxide from spent lead acid batteries ...

In this paper, a novel approach to recover PbO from lead pastes of spent lead acid batteries by desulfurization and crystallization in sodium hydroxide (NaOH) solution after sulfation was proposed. In the lead pastes, PbO can react with sulfuric acid easily to generate PbSO 4, so that the contents of PbO have little impact on the sulfation.

A novel approach to recover lead oxide from spent lead acid batteries ...

Lead–acid batteries are important to modern society because of their wide usage and low cost. The primary source for production of new lead–acid batteries is from recycling spent lead–acid ...

Analysis of a more sustainable method for recycling waste lead ...

To address the urgent demand for improved efficiency and decreased energy consumption in lead paste pre-desulfurization, this paper presents a new lead paste pre …

(PDF) Recycling of Lead Pastes from Spent Lead–Acid Batteries ...

In the recycling process for lead–acid batteries, the desulphurization of lead sulfate is the key part to the overall process. In this work, the thermodynamic constraints for...

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