Energy impact of cathode drying and solvent recovery during lithium-ion battery manufacturing

被引：116

作者：

Ahmed, Shabbir ^{[1
]}

Nelson, Paul A. ^{[1
]}

Gallagher, Kevin G. ^{[1
]}

Dees, Dennis W. ^{[1
]}

机构：

[1] Argonne Natl Lab, Chem Sci & Engn Div, Bldg 200,9700 S Cass Ave, Argonne, IL 60439 USA

来源：

JOURNAL OF POWER SOURCES | 2016年 / 322卷

关键词：

Lithium-ion battery; Manufacturing; Cathode solvent; Energy need; n-methyl pyrrolidone; ELECTROCHEMICAL PERFORMANCE;

D O I：

10.1016/j.jpowsour.2016.04.102

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Successful deployment of electric vehicles requires maturity of the manufacturing process to reduce the cost of the lithium ion battery (LIB) pack. Drying the coated cathode layer and subsequent recovery of the. solvent for recycle is a vital step in the lithium ion battery manufacturing plant and offers significant potential for cost reduction. A spreadsheet model of the drying and recovery of the solvent, is used to study the energy demand of this step and its contribution towards the cost of the battery pack. The base case scenario indicates that the drying and recovery process imposes an energy demand of similar to 10 kWh per kg of the solvent n-methyl pyrrolidone (NMP), and is almost 45 times the heat needed to vaporize the NMP. For a plant producing 100 K battery packs per year for 10 kWh plug-in hybrid vehicles (PHEV), the energy demand is similar to 5900 kW and the process contributes $107 or 3.4% to the cost of the battery pack. The cost of drying and recovery is equivalent to $1.12 per kg of NMP recovered, saving $2.08 per kg in replacement purchase. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：169 / 178

页数：10

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