# Development of a next-generation high-performance battery anode manufacturing expertise that overcomes the constraints of standard dry-electrode processes
# Expected to allow longer EV driving ranges and quick charging whereas demonstrating the commercialization potential of environmentally pleasant battery manufacturing processes
Newswise — CHANGWON, South Korea — Korea Institute of Materials Science (KIMS), led by President Chul-jin Choi, introduced {that a} analysis crew led by Jihee Yoon of the Advanced Materials Research Division, in collaboration with a crew led by Insung Hwang of Korea Electrotechnology Research Institute (KERI), has developed Korea’s first shape-controlled graphite granule-based dry electrode manufacturing expertise able to producing high-performance batteries with out utilizing polytetrafluoroethylene (PTFE), a key materials in standard dry-electrode processes. The expertise is anticipated to increase electrical car (EV) driving vary, scale back charging time, and speed up the commercialization of next-generation environmentally pleasant battery manufacturing processes.
As demand for electrical automobiles and vitality storage techniques (ESS) continues to develop, competitors to develop high-energy-density batteries with longer working life and sooner charging capabilities has intensified. In explicit, dry-electrode expertise, which minimizes using natural solvents and drying processes throughout battery manufacturing, has emerged as a promising next-generation manufacturing methodology. Although dry-electrode expertise presents vital benefits in lowering manufacturing prices and carbon emissions, most present approaches rely closely on PTFE, making the event of different applied sciences a essential problem.
PTFE serves as a key binder materials that holds collectively the varied parts of a dry electrode. However, it could trigger efficiency degradation in anode environments and has attracted growing consideration attributable to environmental considerations related to fluorinated supplies. While it has lengthy been thought-about tough to fabricate dry electrodes with out PTFE, the analysis crew efficiently developed a high-performance PTFE-free dry anode by making use of a CMC-SBR binder system, which is extensively utilized in industrial wet-electrode manufacturing, and redesigning the construction of graphite particles.
The researchers produced composite graphite granules via a spray-drying course of utilizing a slurry composed of graphite, conductive components, and binders. During granulation, standard plate-like graphite particles have been assembled into granules with a randomly oriented, isotropic inside structure relatively than the extremely aligned construction sometimes fashioned throughout standard electrode processing. This isotropic association created multidirectional lithium-ion transport pathways, together with through-plane pathways throughout the electrode thickness, thereby lowering orientation-induced transport limitations. As a consequence, the morphology-engineered granules mitigated the efficiency degradation generally noticed in thick dry electrodes throughout cost–discharge biking.
Experimental outcomes demonstrated that the developed dry anode exhibited superior fast-charging efficiency and long-term biking stability in contrast with standard slurry-based anodes. The expertise additionally considerably improved lithium-ion diffusion traits beneath high-energy-density circumstances, confirming its potential for enabling high-capacity batteries based mostly on thick-electrode architectures. These outcomes present a technological basis for batteries able to delivering each prolonged driving vary and speedy charging.
The expertise is anticipated to seek out purposes in electrical automobiles, vitality storage techniques, and next-generation high-energy-density batteries. In explicit, it might contribute to longer EV driving ranges and fast-charging applied sciences, positioning it as a key expertise for the long run battery business. Furthermore, as a result of the expertise makes use of the CMC-SBR binder system already extensively adopted in business, it presents benefits for large-scale manufacturing. By minimizing solvent use and drying processes, it additionally has the potential to cut back manufacturing prices and carbon emissions.
“This technology presents a new approach capable of overcoming the limitations of conventional PTFE-based dry-electrode processes,” mentioned Jihee Yoon, senior researcher at Korea Institute of Materials Science. “We expect it to be highly applicable to next-generation EV batteries that require both high energy density and fast-charging performance.”
The analysis was supported by KIMS’ institutional analysis program funded by the Ministry of Science and ICT, the Creative Convergence Research Program of the National Research Council of Science and Technology, the Materials and Components Technology Development Program, and the Machinery and Equipment Technology Development Program funded by the Ministry of Trade, Industry and Energy. The findings have been printed on-line on April 21, 2026, in Energy Storage Materials (Impact Factor: 20.2), a number one worldwide journal within the discipline of vitality storage analysis.
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About Korea Institute of Materials Science(KIMS)
KIMS is a non-profit government-funded analysis institute beneath the Ministry of Science and ICT of the Republic of Korea. As the one institute specializing in complete supplies applied sciences in Korea, KIMS has contributed to Korean business by finishing up a variety of actions associated to supplies science together with R&D, inspection, testing&analysis, and expertise assist.