Although lithium ion batteries are already mainstream in today’s storage, the molecules and atomic basic science of charge and discharge are still a mystery.. According to the “NatureCatalysis” research according to the US Department of Energy, the research team has been derived from solid electrolyte interface between electrodes and liquid electrolytes (Solid-Electrolyteinterphase, SEI) chemical components.
. Agong National Laboratory Material Science Department (MSD) Chemical Engineer Dusanstrmcnik said that this will help to improve the team’s predictive ability of battery life, and this is critical to electric car manufacturers. I have long since I have been to crack the lithium-ion battery SEI, but only the formation of the battery will form SEi when the battery is charged, and the thin film in the graphite electrode, and the film protective interface is harmful, while letting lithium ion Shuttle between the electrode heel electrolyte, and therefore, the performance of good performance is a necessary condition regarding the lithium ion battery.
. Strmcnik pointed out that battery efficiency and life depends on SEI quality, if scientists can find their chemical nature and independent ingredient rules, can boost battery efficiency by SEI. Therefore, the International Research Team of Argon National Labs and Denmark Copenhagen, Germany, Munich University and BMW Group, and successfully unlocked the common chemical fluoride fluorfluoride (LithiumiDe).
The experiment and calculation results indicate that hydrogen flu fluoride electrochemical reactions occur during battery charging, converted from electrolytes into solid fluoride and produces hydrogen, which relies height depending on graphite, graphene and metal such electrode material, demonstrated battery catalyst. Importance. The team also also develops a new type of hydrogen fluoride concentration in the team.
Since hydrogen fluoride is a harmful substance formed by moisture and lithium salt (LiPf6), the detection method is critical in SEI future science research.. Nenadmarkovic, researcher, said that the study will be tested in the BMW battery R & D center, and the next step is to design a new lithium-ion battery technology to open another road for today’s lithium-ion batteries.