Thermomechanical Polymer Binder Reactivity with Positive Active Materials for Li Metal Polymer and Li-Ion Batteries: An XPS and XPS Imaging Study

被引：51

作者：

Grissa, Rabeb ^{[1
]}

Abramova, Alla ^{[1
,2
]}

Tambio, Sacris-Jeru ^{[1
]}

Lecuyer, Margaud ^{[2
]}

Deschamps, Marc ^{[2
]}

Fernandez, Vincent ^{[1
]}

Greneche, Jean-Marc ^{[3
]}

Guyomard, Dominique ^{[1
]}

Lestriez, Bernard ^{[1
]}

Moreau, Philippe ^{[1
]}

机构：

[1] Univ Nantes, CNRS, Inst Mat Jean Rouxel IMN, 2 Rue Houssiniere,BP 32229, F-44322 Nantes 3, France

[2] Blue Solut, F-29500 Quimper, France

[3] Univ Maine, CNRS, UMR 6283, IMMM, Ave Olivier Messiaen, F-72085 Le Mans, France

来源：

ACS APPLIED MATERIALS & INTERFACES | 2019年 / 11卷 / 20期

关键词：

PVdF; PEO; XPS; XPS imaging; LFP; NMC; RAY PHOTOELECTRON-SPECTROSCOPY; POLY(VINYLIDENE FLUORIDE); HIGH-VOLTAGE; ELECTROCHEMICAL PROPERTIES; MECHANICAL STRENGTH; TRIBLOCK-COPOLYMERS; CHEMICAL-PROPERTIES; SURFACE-MORPHOLOGY; GRAPHITE PARTICLES; GEL ELECTROLYTE;

D O I：

10.1021/acsami.9b01761

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The lithium and lithium-ion battery electrode chemical stability in the pristine state has rarely been considered as a function of the binder choice and the electrode processing. In this work, X-ray photoelectron spectroscopy (XPS) and XPS imaging analyses associated with complementary Mossbauer spectroscopy are used in order to study the chemical stability of two pristine positive electrodes: (i) an extruded LiFePO4-based electrode formulated with different polymer matrices [polyethylene oxide and a polyvinylidene difluoride (PVdF)] and processed at different temperatures (90 and 130 degrees C, respectively) and (ii) a Li[Ni0.5Mn0.3Co0.2]O-2 (NMC)-based electrode processed by tape-casting, followed by a mild or heavy calendering treatment. These analyses have allowed the identification of reactivity mechanisms at the interface of the active material and the polymer in the case of PVdF-based electrodes.

引用

页码：18368 / 18376

页数：9

共 68 条

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