ELECTRODE AND COMPOSITION HAVING TAILORED POROSITY FOR A LITHIUM-ION ELECTROCHEMICAL CELL

• Main Authors: K. RAGHUNATHAN, HALALAY ION C, JIMENEZ NICCOLO, BALOGH MICHAEL P
• Format: Patent
• Language: Chinese; English
• Published: 18.05.2021
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

An electrode for a lithium-ion electrochemical cell includes a current collector and a first layer formed from a first electrode composition disposed on the current collector. The first electrode composition includes a binder component; a conductive filler component dispersed within the binder component; and an active material component dispersed within the binder component and the conductive filler component. The first electrode composition has a first surface and a second surface spaced apart from and parallel to the first surface. The first electrode composition defines a plurality of pores between the first surface and the second surface having a tailored pore size distribution that includes at least a first pore size and a second pore size that is greater than the first pore size. The first electrode composition has a first porosity of at least 60%. 本发明公开了锂离子电化学电池的电极和具有定制的孔隙率的组合物。锂离子电化学电池的电极包括集流体和由设置在集流体上的第一电极组合物形成的第一层。第一电极组合物包含粘合剂组分；分散在粘合剂组分中的导电填料组分；以及分散在粘合剂组分和导电填料组分中的活性材料组分。第一电极组合物具有第一表面和与第一表面间隔开并平行于第一