ACS Applied Materials & Interfaces · 2021 · 10 citations · 49 references
Natural SciencesMaterials EngineeringMaterials ScienceElectrochemistryEnergy MaterialsMaterials ChemistryAcid-base ChemistryBattery Cell ChemistryBattery MaterialsChemical BondingElectrode MaterialsEnergy Storage MaterialsChemical Reaction MechanismsChemical Reaction NetworksElectrochemical StabilityLithium-ion BatteriesLithium-ion Battery ChemistryLithium-ion Battery MaterialsNickel-based Battery MaterialsPhysical Properties
A binder is an important component in lithium-ion batteries and plays a significant role in maintaining the properties of active substances. Most studies in the field of binders have only focussed on physical properties such as bonding performance. Here, a polyacrylic acid-modified binder was designed and adapted to Li[Ni0.8Co0.1Mn0.1]O2, which enhanced the electrochemical stability of Li[Ni0.8Co0.1Mn0.1]O2 from 30.2 to 66.6% (300 cycles at 1 C). We for the first time discovered that this was caused by a chemical reaction between polyacrylic acid and the residual lithium on the surface during the cycling, which formed a lithium propionic acid coating layer and maintained the stability of the layered structure.
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Tina Weigel, Florian Schipper, Evan M. Erickson et al. · ACS Energy Letters · 2019 · 501 citations
Natural Sciences, Materials Engineering, Materials Science +17
Feng Wu, Na Liu, Lai Chen et al. · Nano Energy · 2019 · 495 citations · Full text
Natural Sciences, Materials Engineering, Materials Science +17