Experimental methods Pretreatment of industrial black mass via acid leaching Black mass was provided in-kind by Altilium, UK. The black mass was leached with sulfuric acid (H 2 SO 4) or citric acid, with or without adding H 2 O 2, to extract high-value metals (mainly those in cathode materials).After leaching, the solid residue was filtered, sieved, and dried.
The ECE method has been employed to successfully produce graphene and graphene oxide (GO) from spent batteries. For instance, Liu et al. synthesized graphene flakes from the graphite rods of spent dry-cell batteries using Pt wire as the cathode and the graphite rods as the anode in the presence of protic acid electrolytes (Liu, J. et al., 2013).
From e-waste to eco-sensors: synthesis of reduced graphene oxide/ZnO from discarded batteries for a rapid electrochemical bisphenol A sensor. Md Humayun Kabir * a, Md Yeasin Pabel a, Nishat Tasnim Bristy ab, Md. Abdus Salam b, Muhammad Shahriar Bashar c and Sabina Yasmin * a a Institute of National Analytical Research and Service (INARS),
Schematic diagram of synthesis graphene from spent anode material (a) synthesis graphene graphite due to lattice expansion from spent graphite by acid leaching and its TEM image [154], (b) Model for the improved Hummers'' method''s oxidation mechanism and production of graphene oxide from spend graphite [155], (c) Utilizing graphite spent lithium-ion
For battery applications such as LIB, Li–S batteries, and Na- or K-ion batteries, high purity Gr with narrow particle size distributions is required, which means acid
DOI: 10.1016/j.jclepro.2020.123585 Corpus ID: 225155077; A green and facile approach for regeneration of graphite from spent lithium ion battery @article{Yi2020AGA, title={A green and facile approach for regeneration of graphite from spent lithium ion battery}, author={Chen Yi and Yue Yang and Tao Zhang and Xiqin Wu and Wei Sun and Longsheng Yi}, journal={Journal of
In this work, spent graphite from LIBs was oxidized to graphene oxide and then thermally reduced to reduced graphene oxide (RGO), which serves as the cathode of aqueous
Graphene and batteriesGraphene, a sheet of carbon atoms bound together in a honeycomb lattice pattern, is hugely recognized as a wonder material due to the myriad of
The results demonstrated that the purification process significantly improves the material''s capacity with a specific capacity of 350 mAh/g compared to the 280 mAh/g capacity of the anode made of spherical graphite without purification. Keywords: batteries, Li-ion battery, spherical graphite, anode for batteries, graphite purification. 1
This study proposes a cost-effective reduced graphene oxide/zinc oxide (rGO/ZnO) nanohybrid, entirely synthesized from electronic waste, for electrochemically detecting BPA in an aqueous medium. Graphite and metallic Zn precursors obtained from discarded batteries were employed to synthesize rGO/ZnO.
Graphite oxide could be completely reduced to graphene at pH 11 and 0.25 mL N 2 H 4 ·H 2 O. Due to the presence of some oxygen-containing groups and structure defects
With the widespread application of Li-ion batteries (LIBs) and the attendant appearance of large amounts of spent LIBs, recycling discarded graphite anodes is of great significance from the perspective of saving energy
The purification of recycled graphite was implemented by acid curing-leaching and calcination. discarded LIBs will weigh about 11 million tons worldwide (Natarajan and Aravindan The electrical resistance of graphite used in the battery anode and graphene samples synthesized using the improved Hummer method was measured using a four
Efficient purification and high-quality regeneration of graphite from spent lithium-ion batteries by surfactant-assisted methanesulfonic acid. Waste Management 2024, 178, 105-114.
batteries as anode materials through stepwise purification and mild temperature restoration Shaowen Ji1 discarded or landfilled.21,22 Therefore, cathode materials,27,28 and graphene materials.29,30 How-ever, the preparation costs are high, and the increased
Another direction for spent graphite recycling may change the application of spent graphite in sodium ion batteries, potassium ion batteries, nanomaterials such as graphene and expanded graphite. Through the closed-circuit cycle of spent graphite in the field of LIBs, and the extended application of high value-added materials, the clean recycling of graphite in spent
Among them, the LCO batteries come from iphone 5 s mobile phones with the capacity of 1560 mA h and the size of 91 × 32 × 3 mm; the NCM batteries are soft pack power batteries with the capacity of 10,000 mA h and the size of 132 × 65 × 13 mm, whose nickel, cobalt and manganese contents are all 33 %; the LFP batteries are standard 18,650 cylindrical
Context: A group of researchers at Nagpur-based Visvesvaraya National Institute of Technology have developed a new technique which promises to help produce high value graphene from discarded dry cells batteries. As of now, researchers have achieved 88% yield of graphene from a single graphite rod. It can be scaled up to the industrial level.
From e-waste to eco-sensors: synthesis of reduced graphene oxide/ZnO from discarded batteries for a rapid electrochemical bisphenol A sensor. RSC Advances. November 2024; 14(48):36073-36083;
Highlights • Urban mining for graphite recovery from retired lithium-ion batteries was explored. • Reduced consumption of chemical reagents in the synthesis of GO was
Overall, this work realizes the thorough purification and oxidation integration in one step, shorts the recycling process, prepares high-performance expanded graphite anode materials and improves the recycling profits ultimately, which provides the instructive guide for recycling and regeneration of waste graphite from spent lithium-ion batteries.
A purification process is essential to meet the graphite requirements of the LIBs industry. Lithiation-aided conversion of end-of-life lithium-ion battery anodes to high-quality graphene and graphene oxide. Nano. Lett A high-performance regenerated graphite extracted from discarded lithium-ion batteries. New. J. Chem, 45 (2021), pp
The recycling of spent lithium-ion batteries (Li-ion Batteries) has drawn a lot of interest in recent years in response to the rising demand for the corresponding high
The purification of recycled graphite was implemented by acid curing-leaching and calcination. 2013). By 2030, discarded LIBs will weigh about 11 million tons worldwide (Natarajan and Aravindan, 2018, Xu et al., 2020). Recycling of graphite and metals from spent Li-ion batteries aiming the production of graphene/CoO-based
Improved Hummer''s method is widely used to prepare graphene oxide (GO), which is a precursor of graphene. Purification of as-prepared GO is challenging due to the used corrosive acidic media
The resource recycling of graphite anode holds multi-dimensional applications mainly as battery anode materials, but also graphitic carbon-related derivatives such as graphene composite
The synthesis of graphene materials in both high quality and quantity via economic ways is highly desirable and meaningful for practical applications. In this study, we reported the preparation of reduced graphene oxide (rGO) nanosheets in quantity via the anodic exfoliation of graphite in (NH_4)_2S_2O_8 aqueous solution. The proposed electrochemical
Lithium-ion batteries (LIBs) are now widely used in emerging fields such as new energy vehicles (EVs) and large-scale industrial energy storage systems [1].The large-scale deployment of EVs puts forward higher demands on the energy density of batteries, which makes researchers try to replace them with higher-capacity materials in order to significantly improve
Graphite is a necessary component of lithium-ion batteries, and recycling it from spent batteries can help reduce reliance on raw graphite sources. Its recycling includes high
Our findings indicated Al and F as primary sources affecting overall purification efficiency, while the remaining metal and phosphorus can be readily eliminated. By integrating acid-leaching
The number of lithium-ion batteries (LIBs) from hybrid and electric vehicles that are produced or discarded every year is growing exponentially, which may pose risks to supply lines of limited resources. Thus, recycling and regeneration of end-of-life LIBs (EoL-LIBs) is becoming an urgent and critical task for a sustainable and environmentally friendly future.
After purification, Separation and recovery of carbon powder in anodes from spent lithium-ion batteries to synthesize graphene. Sci Rep, 9 (1) (2019), pp. 9823-9827, 10.1038/s41598-019-46393-4. A facile strategy for reclaiming discarded graphite and harnessing the rate capabilities of graphite anodes. J Hazard Mater, 445
With the wide usage of Li-ion batteries (LIBs) in portable electronics, electric vehicles, and grid storage, recycling and reusing LIBs have attracted wide attention. However, due to the low added value and rigorous
Lithium-ion batteries (LIBs) have gained immense popularity in recent years as the world shifts toward cleaner energy solutions. Since the commercialization of LIBs in the 1990s, it has been widely used in portable electronic devices such as mobile phones, tablets, cameras, laptops, and other electronic gadgets [1, 2].Their demand (typically cylindrical
Graphite is one of the most widely used anode materials in lithium‐ion batteries (LIBs). The recycling of spent graphite (SG) from spent LIBs has attracted less attention due to its limited value, complicated contaminations, and unrestored structure. In this study, a remediation and regeneration process with combined hydrothermal calcination was proposed to remove
Metal content present in the spent lithium ion batteries (LIBs) make their recycling vital for resources conservation and environmental sustainability. Cobalt, grouped among critical, valuable and strategic metals, is the basic part of the LIBs cathode and defines its recycling economic capacity. In the present work, an attempt has been made to develop an efficient
Today''s Li-ion batteries consist of lithium metal oxide cathodes, carbon (graphite) anodes, liquid electrolytes, polymer separators, and metal current collectors [15].Many efforts have been focused on the recovery of lithium, cobalt, and nickel from end-of-life Li-ion battery cathodes [[16], [17], [18]] pared to the cathode recycling, anode recycling has
Recycling is a necessary strategy to manage spent LIBs, which focuses mainly on recovering valuable metals, such as Co, Ni, Li, and Al from the cathode materials. 12-14 Due to its low value and difficulty of recycling, the
Thus, there is an opportunity for graphite recovered from spent batteries to make supply to be balanced with demand, additionally reducing transportation expenses. The graphite content in graphite anodes originating from EVs is above 80%, far higher than the grade of mined graphite.
In view of wide usage of natural graphite and the high content (12%–21%) of anode graphite in spent LIBs, recycling anode graphite from spent LIBs cannot only alleviate the shortage of natural graphite, but also promote the sustainable development of related industries.
Seven of these works focused on recovered graphite and its application to secondary batteries, and two of them used graphite as a virgin material to synthesize value-added materials such as graphene oxide.
After calcined at 600°C for 1 h to remove organic substances, anode graphite was used to prepare graphene by oxidation-reduction method. Effect of pH and N 2 H 4 ·H 2 O amount on reduction of graphite oxide were probed. Structure of graphite, graphite oxide and graphene were characterized by XRD, Raman and FTIR.
Treatments using polar solvents, high temperatures or ultrasonication could aid the removal of the electrolyte and organic binder residues from the spent graphite surface. Thus, a combined approach for separation and purification is often required to obtain high quality, reusable graphite.
The synthesized graphene exhibited higher specific surface areas and conductivity values compared to battery-grade graphite.
VoltGrid Solutions is committed to delivering dependable power storage for critical infrastructure and renewable systems worldwide.
From modular lithium cabinets to full-scale microgrid deployments, our team offers tailored solutions and responsive support for every project need.