The transition metal dissolution of cathode materials during cycling limits battery performances and lifetimes. Here, authors inhibit metal dissolution by using highly concentrated electrolytes that induce ultra-thin cathode electrolyte interphase formation on cathode surfaces during cycling.
The dissolution of transition-metal (TM) cations into a liquid electrolyte from cathode material, such as Mn ion dissolution from LiMn 2 O 4 (LMO), is detrimental to the cycling performance of Li-ion batteries (LIBs). Though much attention has been paid to this issue, the behavior of Mn dissolution has not been clearly revealed.
Transition-metal dissolution from cathode materials, manganese in particular, has been held responsible for severe capacity fading in lithium-ion batteries, with the deposition of the transition-metal cations on anode surface, in elemental form or as chelated-complexes, as the main contributor for such degradations.
We find that the identity of the lithium salt anions in our electrolyte systems [ClO 4–, PF 6–, and (CF 3 SO 2) 2 N –] appears to affect the Mn dissolution process significantly as well as the electrochemical behavior of the generated Mn complexes.
Leah Rynearson, Cali Antolini, Chamithri Jayawardana, Munaiah Yeddala, Dugan Hayes, Brett L. Lucht. Speciation of Transition Metal Dissolution in Electrolyte from Common Cathode Materials.
Unlike the revolutionary advances in the anodes of lithium-ion batteries from Li intercalation materials to Li alloy and/or conversion reaction materials, the development of the cathode is still dominated by the Li intercalation compounds.
In the first four sections, we choose Mn-based cathodes as an example to discuss how Mn DMD relates to the capacity fade of the cell, and what possible approaches might suppress the DMD …
Lithium-ion batteries (LIBs) dominate the market of rechargeable power sources. To meet the increasing market demands, technology updates focus on advanced battery …
3.1.2.1 Lithium Cobalt Oxide (LiCoO 2). Lithium cobalt oxide (LiCoO 2) has been one of the most widely used cathode materials in commercial Li-ion rechargeable batteries, …
Low-nickel materials are limited by their capacity, which is lower than 180 mAh/g, so especially the nickel-rich layered structure cathode material NCM811 has received much attention. 14 NCM811 has a high lithium ion …
The dissolution of transition-metal (TM) cations into a liquid electrolyte from cathode material, such as Mn ion dissolution from LiMn 2 O 4 (LMO), is detrimental to the …
The dissolution of transition-metal (TM) cations into a liquid electrolyte from cathode material, such as Mn ion dissolution from LiMn 2 O 4 (LMO), is detrimental to the cycling performance of Li-ion batteries (LIBs). …
In this context, Zhu et al. developed V 2 O 5 hollow multi shelled structures (HoMSs)/Ni-cotton flexible 3D-textile-based cathode electrodes towards the exploration of high …
Enabling aqueous processing for lithium-ion battery cathodes is essential as solvents like N-methyl-2-pyrrolidone (NMP) are expensive, hazardous, and being phased out …
The review paper delves into the materials comprising a Li-ion battery cell, including the cathode, anode, current concentrators, binders, additives, electrolyte, separator, …
Transition-metal dissolution from cathode materials, manganese in particular, has been held responsible for severe capacity fading in lithium-ion batteries, with the deposition of the …
The reduction of transition metals in the leaching process of Li-ion battery cathode materials using DESs is typically controlled by hydrogen bond donors, which reduce …
In the first four sections, we choose Mn-based cathodes as an example to discuss how Mn DMD relates to the capacity fade of the cell, and what possible approaches might suppress the DMD process by modification of the electrode …
Fabrication procedure of the 3D cathode and structure of flexible battery, cross-section image of the designed cathode and electrochemical performances: a) Schematic of the …
Achieving efficient, green, and selective dissolution of LFP at low temperatures remains a significant challenge. Here, we, for the first time, find that natural deep eutectic solvents (NADESs) containing glucose and lactic …
The 2019 Nobel Prize in Chemistry has been awarded to a trio of pioneers of the modern lithium-ion battery. Here, Professor Arumugam Manthiram looks back at the evolution …
Since all three TM ions can dissolve from LiNi 1−x−y Mn x Co y O 2 (NMC) cathodes and migrate to the anode, here a LiFePO 4 cathode is paired with SiO x anode and …
For example, a solid-state battery with lithium metal and nickel manganese cobalt aluminum oxide (NMCA) can achieve 1,200 Wh/L (500 Wh/kg). The figure below compares different …
Enabling aqueous processing for lithium-ion battery cathodes is essential as solvents like N-methyl-2-pyrrolidone (NMP) are expensive, hazardous, and being phased out …
Enter graphene. Engineers previously knew that carbon coatings on a lithium-ion battery''s cathode could slow or stop TMD, but developing a method to apply these …
Related Stories. The performance of lithium-ion batteries over numerous cycles of usage and charging is a crucial characteristic. The cathode and anode, the battery''s two ends, generate …
Cathode is another important component that determines the energy density of lithium ion battery. Representative cathode materials are ... Mn ion dissolution; (1) Improve …
The reduction of transition metals in the leaching process of Li-ion battery cathode materials using DESs is typically controlled by hydrogen bond donors, which reduce …