New electrode material: spherical activated carbon

{"news_id":8886,"is_preview":0,"news_info":{"id":8886,"company_id":176,"user_id":411,"author":"","website_id":781,"pub_date":"2024-05-15 09:28:16","urla":"new-electrode-material-spherical-activated-carbon","description":"Exploring spherical activated carbon as a rechargeable battery electrode material, highlighting high surface area and applications in lithium-ion, sodium-ion, and metal-air batteries.","image_url":"https:\/\/oss.matchpages.cn\/matchpages\/common\/2024\/0515\/8396\/66440eda5f4e7\/adobestock_499735820-web--1-.jpg","image_alt":"adobestock_499735820-web (1).jpg","title":"\u00a0New electrode material: spherical activated carbon","content":"<h1 style=\"line-height: 1.6;\"><span style=\"color: #3a3a3a;\">New electrode material: spherical activated carbon<\/span><\/h1>\n<p style=\"line-height: 1.6;\"><span style=\"color: #3a3a3a;\">In recent years, with the rapid consumption of fossil fuels, the large amount of carbon dioxide emissions lead to serious greenhouse effect and environmental problems. People's demand for renewable energy is increasing, and the search for efficient and clean secondary energy has attracted the attention of researchers in various countries. Rechargeable batteries (lithium-ion batteries, sodium-ion batteries, lithium-sulfur batteries, air batteries, etc.), are the most widely used energy storage technology, and their research largely determines the development of a country in the field of renewable energy.<\/span><\/p>\n<p style=\"line-height: 1.6;\"><span style=\"color: #3a3a3a;\">However, the performance of batteries largely depends on the performance of their electrode materials. At present, the electrode materials mainly contain metal compounds, conductive polymers and carbon materials. Compared with other electrode materials, carbon materials are ideal electrochemical materials because of its rich raw materials, low price, good conductivity, high stability and corrosion resistance. The special energy storage mechanism of carbon materials leads to the great relationship between their capacity performance and specific surface area. Therefore, it is of great significance to develop new raw materials and explore new nanostructures and high specific surface area activated carbon preparation process.<\/span><\/p>\n<p style=\"line-height: 1.6;\"><span style=\"color: #3a3a3a;\"><strong><span style=\"color: #2dc26b;\"><a style=\"color: #2dc26b;\" href=\"carbon-for-new-energy\" data-page_id=\"19585\" data-page_name=\"Carbon for New Energy \uff5cACC\" data-page_type=\"menuPage\">Activated carbon<\/a><\/span><\/strong> is the most used electrode material, it has the rich raw materials, low price, high specific surface area, good formability, high electrochemical stability, good corrosion resistance, mature technology and other characteristics. The properties of activated carbon directly affect the performance of the battery, among which the most critical factors are the specific surface area, pore size distribution, surface functional group and electrical conductivity of activated carbon.<\/span><\/p>\n<p style=\"line-height: 1.6;\"><span style=\"color: #3a3a3a;\"><span style=\"color: #2dc26b;\"><strong><a style=\"color: #2dc26b;\" href=\"spherical-activated-carbon\" data-page_id=\"19576\" data-page_name=\"Spherical Activated Carbon\uff5cACC\" data-page_type=\"menuPage\">Spherical activated carbon<\/a><\/strong><\/span> is a new type of carbon material with superior structure, with high specific surface area and large pore content, which is one of the most promising high-performance battery electrode materials. Specifically, spherical activated carbon can provide effective paths and space to transfer electrons \/ ions in the electrode, resulting in high-performance rechargeable batteries. The use of spherical activated carbon can also overcome the problem of unnecessary side reactions to improve Coulomb Efficiency (CE) and bring the potential to adjust surface properties to achieve high capacity. The spherical activated carbon with controllable structure can improve the electrochemical performance of the electrodes due to its multifunctional characteristics in different types of rechargeable batteries.<\/span><\/p>\n<p style=\"line-height: 1.6;\"><span style=\"color: #3a3a3a;\">Compared with other carbon-based materials, various spherical activated carbons have been extensively studied as electrode materials for rechargeable batteries due to their adjustable aperture distribution, high light surface area, spherical morphology and unique surface chemistry. One of the most successful applications of spherical activated carbon in batteries is the carbon \/ sulfur nanoparticles in lithium-sulfur (Li-S) batteries. The tunable porosity of spherical activated carbon can provide high sulfur load, physical sulfur and polysulfur, and inhibit the shuttling effect of polysulfur, which leads to the high volume energy density of Li-S cells. In metal-air batteries, spherical activated carbon controlling porosity and pore size distribution can effectively promote electrolyte impregnation and oxygen diffusion into the electrode interior, thus achieving high-performance metal \/ air batteries.<\/span><\/p>\n<p style=\"line-height: 1.6;\"><img src=\"https:\/\/oss.matchpages.cn\/matchpages\/common\/2024\/0220\/7943\/65d45d2959531\/%E5%9B%BE%E7%89%872--6-.webp\" alt=\"ion batteries \" data-resolution=\"205*246\" \/><\/p>\n<p style=\"line-height: 1.6;\"><span style=\"color: #3a3a3a;\">The spherical activated carbon, which beyond graphite, provides a lot of opportunities for preparing high-performance rechargeable battery electrode materials with higher energy density, longer life and higher safety. From nanoscale to macroscale, spherical activated carbon has promising commercial applications in rechargeable batteries. <strong><span style=\"color: #2dc26b;\"><a style=\"color: #2dc26b;\" href=\"graphite-anode-materials\" data-page_id=\"19587\" data-page_name=\"Graphite Anode Materials\uff5cACC\" data-page_type=\"menuPage\">Carbon in the form of graphite<\/a><\/span><\/strong> is widely used in anode materials. However, the low electrical capacity of graphite limits its use in electric vehicles, which require higher high-energy densities. By different methods, some spherical activated carbon has a high capacity (&gt; 400 mAh \/ g). <\/span><\/p>\n<p style=\"line-height: 1.6;\"><span style=\"color: #3a3a3a;\">However, the low initial Coulomb efficiency (initial irreversible capacity) requires improvement. For sodium-ion batteries, the limited sodium storage capacity of graphene carbon-based materials must be enhanced by chemical modification, porous structure design, and heteroatomic doping. Traditional graphite materials have limited sodium ion storage capacity due to the mismatch of large Na<sup>+<\/sup>&nbsp;ions. Pore design (hollow structure), disordered carbon structure and heteroatomic doping (e. g., N, B, S, and P) can effectively improve the electrochemical adsorption \/ deoxygenation effect. For spherical activated carbon, tunable porosity and sphere structure with good physical and chemical properties have potential applications in sodium ion batteries.<\/span><\/p>\n<p style=\"line-height: 1.6;\"><span style=\"color: #3a3a3a;\">The demonstration of the adsorption-pore-filling mechanism provides a strategy for the design of high-performance sodium ion batteries based on carbon-based anodes. However, further studies on spherical activated carbon for sodium ion batteries are needed to improve the initial Coulomb efficiency and capacity, increase the tap density, and understand the sodium storage mechanism.<\/span><\/p>\n<p style=\"line-height: 1.6;\"><span style=\"color: #3a3a3a;\">The electrochemical performance of lithium-ion batteries can be improved by rational pore structure design and inhibiting \/ preventing the intrinsic polythiester dissolution (shuttle effect). <span style=\"color: #2dc26b;\"><strong><a style=\"color: #2dc26b;\" href=\"porous-carbon-materials\" data-page_id=\"19584\" data-page_name=\"Porous Carbon Materials\uff5cACC\" data-page_type=\"menuPage\">Mesoporous \/ microporous<\/a> <\/strong><\/span>spherical activated carbon is attractive to overcome the problem of shuttle effect. Layered spherical activated carbon may be one of the best choices for a high-load C \/ S cathode in lithium-ion batteries.In particular, multiple micrometer-sized spherical activated carbon particles with layered structures can load a higher proportion of sulfur, so Li-S cells with micron spherical activated carbon particles can achieve higher energy density compared to nano-sized spherical activated carbon particles.<\/span><\/p>\n<p style=\"line-height: 1.6;\"><span style=\"color: #3a3a3a;\"> This layered and interconnected structure facilitates the fabrication of a thick C \/ S cathode, which not only improves connectivity between individual particles under less binders but also ensures efficient particle filling and high faucet density. Moreover, the powerful porosity of the layered spherical activated carbon enables the penetration of the electrolyte into the electrode, thus maintaining the good electrochemical performance of Li-S cells with high capacity energy density. In recent years, a non-packaging method using functionalized low surface area carbon as the main system to prepare high-performance lithium-ion batteries has provided a new direction for the design of high-load sulfur cathodes.<\/span><\/p>\n<p style=\"line-height: 1.6;\"><span style=\"color: #3a3a3a;\">For metal-air batteries such as Li-O<sub>2<\/sub> batteries, it is very challenging and urgently needed to prepare effective O<sub>2<\/sub>\/Li-O<sub>2<\/sub> conversion electrocatalysts and promote the diffusion of O<sub>2<\/sub> and electrolyte. Spherical activated carbons with ordered mesoporous channels and hierarchical mesoporous\/macroporous structures can provide high density reaction sites and abundant space to accommodate discharge products for Li-O<sub>2<\/sub> reaction.<\/span><\/p>\n<p style=\"line-height: 1.6;\"><span style=\"color: #3a3a3a;\">In summary, spherical activated carbon plays an important role in the development of advanced rechargeable batteries with high energy density, high power capacity and long cycle life. These achievements help illuminate the development of next-generation lithium\/sodium-ion batteries, lithium-sulfur batteries, lithium-iodine batteries, lithium\/sodium-air batteries, and other new rechargeable battery systems. Although their current performance does not fully meet the needs of commercial applications, they have great potential and will attract in-depth research to improve their overall physical and chemical properties for energy storage and conversion.<\/span><\/p>","discuss":0,"seo_title":"New electrode material: spherical activated carbon | ACC","seo_keyword":"spherical activated carbon, electrode material, rechargeable batteries, energy density, capacity, safety, lithium-ion batteries, sodium-ion batteries, lithium-sulfur batteries, metal-air batteries","seo_describe":"Discover the potential of spherical activated carbon in rechargeable batteries. Explore its high surface area and impact on energy density and capacity.","track_code":"","viewer":"","source_copy_id":0,"sort":32,"status":0,"data_time":"2024-05-15 09:28:16","create_time":"2024-05-10 16:49:35","update_time":"2025-04-02 09:56:43","type_items":[{"id":2203,"website_id":781,"name":"Carbon for New Energy","urla":""}],"tag_items":[]}}

<h1 style="line-height: 1.6;"><span style="color: #3a3a3a;">New electrode material: spherical activated carbon</span></h1>
<p style="line-height: 1.6;"><span style="color: #3a3a3a;">In recent years, with the rapid consumption of fossil fuels, the large amount of carbon dioxide emissions lead to serious greenhouse effect and environmental problems. People's demand for renewable energy is increasing, and the search for efficient and clean secondary energy has attracted the attention of researchers in various countries. Rechargeable batteries (lithium-ion batteries, sodium-ion batteries, lithium-sulfur batteries, air batteries, etc.), are the most widely used energy storage technology, and their research largely determines the development of a country in the field of renewable energy.</span></p>
<p style="line-height: 1.6;"><span style="color: #3a3a3a;">However, the performance of batteries largely depends on the performance of their electrode materials. At present, the electrode materials mainly contain metal compounds, conductive polymers and carbon materials. Compared with other electrode materials, carbon materials are ideal electrochemical materials because of its rich raw materials, low price, good conductivity, high stability and corrosion resistance. The special energy storage mechanism of carbon materials leads to the great relationship between their capacity performance and specific surface area. Therefore, it is of great significance to develop new raw materials and explore new nanostructures and high specific surface area activated carbon preparation process.</span></p>
<p style="line-height: 1.6;"><span style="color: #3a3a3a;"><strong><span style="color: #2dc26b;"><a style="color: #2dc26b;" href="carbon-for-new-energy" data-page_id="19585" data-page_name="Carbon for New Energy ｜ACC" data-page_type="menuPage">Activated carbon</a></span></strong> is the most used electrode material, it has the rich raw materials, low price, high specific surface area, good formability, high electrochemical stability, good corrosion resistance, mature technology and other characteristics. The properties of activated carbon directly affect the performance of the battery, among which the most critical factors are the specific surface area, pore size distribution, surface functional group and electrical conductivity of activated carbon.</span></p>
<p style="line-height: 1.6;"><span style="color: #3a3a3a;"><span style="color: #2dc26b;"><strong><a style="color: #2dc26b;" href="spherical-activated-carbon" data-page_id="19576" data-page_name="Spherical Activated Carbon｜ACC" data-page_type="menuPage">Spherical activated carbon</a></strong></span> is a new type of carbon material with superior structure, with high specific surface area and large pore content, which is one of the most promising high-performance battery electrode materials. Specifically, spherical activated carbon can provide effective paths and space to transfer electrons / ions in the electrode, resulting in high-performance rechargeable batteries. The use of spherical activated carbon can also overcome the problem of unnecessary side reactions to improve Coulomb Efficiency (CE) and bring the potential to adjust surface properties to achieve high capacity. The spherical activated carbon with controllable structure can improve the electrochemical performance of the electrodes due to its multifunctional characteristics in different types of rechargeable batteries.</span></p>
<p style="line-height: 1.6;"><span style="color: #3a3a3a;">Compared with other carbon-based materials, various spherical activated carbons have been extensively studied as electrode materials for rechargeable batteries due to their adjustable aperture distribution, high light surface area, spherical morphology and unique surface chemistry. One of the most successful applications of spherical activated carbon in batteries is the carbon / sulfur nanoparticles in lithium-sulfur (Li-S) batteries. The tunable porosity of spherical activated carbon can provide high sulfur load, physical sulfur and polysulfur, and inhibit the shuttling effect of polysulfur, which leads to the high volume energy density of Li-S cells. In metal-air batteries, spherical activated carbon controlling porosity and pore size distribution can effectively promote electrolyte impregnation and oxygen diffusion into the electrode interior, thus achieving high-performance metal / air batteries.</span></p>
<p style="line-height: 1.6;"><img src="https://oss.matchpages.cn/matchpages/common/2024/0220/7943/65d45d2959531/%E5%9B%BE%E7%89%872--6-.webp" alt="ion batteries " data-resolution="205*246" /></p>
<p style="line-height: 1.6;"><span style="color: #3a3a3a;">The spherical activated carbon, which beyond graphite, provides a lot of opportunities for preparing high-performance rechargeable battery electrode materials with higher energy density, longer life and higher safety. From nanoscale to macroscale, spherical activated carbon has promising commercial applications in rechargeable batteries. <strong><span style="color: #2dc26b;"><a style="color: #2dc26b;" href="graphite-anode-materials" data-page_id="19587" data-page_name="Graphite Anode Materials｜ACC" data-page_type="menuPage">Carbon in the form of graphite</a></span></strong> is widely used in anode materials. However, the low electrical capacity of graphite limits its use in electric vehicles, which require higher high-energy densities. By different methods, some spherical activated carbon has a high capacity (> 400 mAh / g). </span></p>
<p style="line-height: 1.6;"><span style="color: #3a3a3a;">However, the low initial Coulomb efficiency (initial irreversible capacity) requires improvement. For sodium-ion batteries, the limited sodium storage capacity of graphene carbon-based materials must be enhanced by chemical modification, porous structure design, and heteroatomic doping. Traditional graphite materials have limited sodium ion storage capacity due to the mismatch of large Na<sup>+</sup> ions. Pore design (hollow structure), disordered carbon structure and heteroatomic doping (e. g., N, B, S, and P) can effectively improve the electrochemical adsorption / deoxygenation effect. For spherical activated carbon, tunable porosity and sphere structure with good physical and chemical properties have potential applications in sodium ion batteries.</span></p>
<p style="line-height: 1.6;"><span style="color: #3a3a3a;">The demonstration of the adsorption-pore-filling mechanism provides a strategy for the design of high-performance sodium ion batteries based on carbon-based anodes. However, further studies on spherical activated carbon for sodium ion batteries are needed to improve the initial Coulomb efficiency and capacity, increase the tap density, and understand the sodium storage mechanism.</span></p>
<p style="line-height: 1.6;"><span style="color: #3a3a3a;">The electrochemical performance of lithium-ion batteries can be improved by rational pore structure design and inhibiting / preventing the intrinsic polythiester dissolution (shuttle effect). <span style="color: #2dc26b;"><strong><a style="color: #2dc26b;" href="porous-carbon-materials" data-page_id="19584" data-page_name="Porous Carbon Materials｜ACC" data-page_type="menuPage">Mesoporous / microporous</a> </strong></span>spherical activated carbon is attractive to overcome the problem of shuttle effect. Layered spherical activated carbon may be one of the best choices for a high-load C / S cathode in lithium-ion batteries.In particular, multiple micrometer-sized spherical activated carbon particles with layered structures can load a higher proportion of sulfur, so Li-S cells with micron spherical activated carbon particles can achieve higher energy density compared to nano-sized spherical activated carbon particles.</span></p>
<p style="line-height: 1.6;"><span style="color: #3a3a3a;"> This layered and interconnected structure facilitates the fabrication of a thick C / S cathode, which not only improves connectivity between individual particles under less binders but also ensures efficient particle filling and high faucet density. Moreover, the powerful porosity of the layered spherical activated carbon enables the penetration of the electrolyte into the electrode, thus maintaining the good electrochemical performance of Li-S cells with high capacity energy density. In recent years, a non-packaging method using functionalized low surface area carbon as the main system to prepare high-performance lithium-ion batteries has provided a new direction for the design of high-load sulfur cathodes.</span></p>
<p style="line-height: 1.6;"><span style="color: #3a3a3a;">For metal-air batteries such as Li-O<sub>2</sub> batteries, it is very challenging and urgently needed to prepare effective O<sub>2</sub>/Li-O<sub>2</sub> conversion electrocatalysts and promote the diffusion of O<sub>2</sub> and electrolyte. Spherical activated carbons with ordered mesoporous channels and hierarchical mesoporous/macroporous structures can provide high density reaction sites and abundant space to accommodate discharge products for Li-O<sub>2</sub> reaction.</span></p>
<p style="line-height: 1.6;"><span style="color: #3a3a3a;">In summary, spherical activated carbon plays an important role in the development of advanced rechargeable batteries with high energy density, high power capacity and long cycle life. These achievements help illuminate the development of next-generation lithium/sodium-ion batteries, lithium-sulfur batteries, lithium-iodine batteries, lithium/sodium-air batteries, and other new rechargeable battery systems. Although their current performance does not fully meet the needs of commercial applications, they have great potential and will attract in-depth research to improve their overall physical and chemical properties for energy storage and conversion.</span></p>