Evaluation of commercial lithium-ion cells based on composite positive electrode for plug-in hybrid electric vehicle applications. Part I: Initial characterizations

Abstract Evaluating commercial Li-ion batteries presents some unique benefits. One of them is to use cells made from established fabrication process and form factor, such as those offered by the 18650 cylindrical configuration, to provide a common platform to investigate and understand performance deficiency and aging mechanism of target chemistry. Such an approach shall afford us to derive relevant information without influence from processing or form factor variability that may skew our understanding on cell-level issues. A series of 1.9 Ah 18650 lithium ion cells developed by a commercial source using a composite positive electrode comprising {LiMn1/3Ni1/3Co1/3O2 + LiMn2O4} is being used as a platform for the investigation of certain key issues, particularly path-dependent aging and degradation in future plug-in hybrid electric vehicle (PHEV) applications, under the US Department of Energy's Applied Battery Research (ABR) program. Here we report in Part I the initial characterizations of the cell performance and Part II some aspects of cell degradation in 2C cycle aging. The initial characterizations, including cell-to-cell variability, are essential for life cycle performance characterization in the second part of the report when cell-aging phenomena are discussed. Due to the composite nature of the positive electrode, the features (or signature) derived from the incremental capacity (IC) of the cell appear rather complex. In this work, the method to index the observed IC peaks is discussed. Being able to index the IC signature in details is critical for analyzing and identifying degradation mechanism later in the cycle aging study.

[1]  Jaephil Cho,et al.  LiCoO2 Cathode Material That Does Not Show a Phase Transition from Hexagonal to Monoclinic Phase , 2001 .

[2]  Tsutomu Ohzuku,et al.  Electrochemistry of Manganese Dioxide in Lithium Nonaqueous Cell , 1990 .

[3]  J. Dahn,et al.  In situ x-ray diffraction and electrochemical studies of Li1−xNiO2 , 1993 .

[4]  Herbert L Case,et al.  Calendar- and cycle-life studies of advanced technology development program generation 1 lithium-ion batteries , 2002 .

[5]  Matthieu Dubarry,et al.  From single cell model to battery pack simulation for Li-ion batteries , 2009 .

[6]  A. Manthiram,et al.  Suppression of Mn Dissolution in Spinel Cathodes by Trapping the Protons within Layered Oxide Cathodes , 2007 .

[7]  Chisu Kim,et al.  Electrochemical evaluation of mixed oxide electrode for Li-ion secondary batteries: Li1.1Mn1.9O4 and LiNi0.8Co0.15Al0.05O2 , 2005 .

[8]  Vojtech Svoboda,et al.  Capacity loss in rechargeable lithium cells during cycle life testing: The importance of determining state-of-charge , 2007 .

[9]  J. Barker,et al.  An electrochemical investigation into the lithium insertion properties of LixNiO2 (0 ≤ x ≤ 1) , 1996 .

[10]  Matthieu Dubarry,et al.  Origins and accommodation of cell variations in Li‐ion battery pack modeling , 2010 .

[11]  K. Takeda,et al.  High-Temperature Storage Performance of Li-Ion Batteries Using a Mixture of Li-Mn Spinel and Li-Ni-Co-Mn Oxide as a Positive Electrode Material , 2005 .

[12]  Matthieu Dubarry,et al.  Investigation of path dependence in commercial lithium-ion cells chosen for plug-in hybrid vehicle duty cycle protocols , 2011 .

[13]  Tatsuji Numata,et al.  Advantages of blending LiNi0.8Co0.2O2 into Li1+xMn2−xO4 cathodes , 2001 .

[14]  Vojtech Svoboda,et al.  Capacity and power fading mechanism identification from a commercial cell evaluation , 2007 .

[15]  Daniel P. Abraham,et al.  Differential voltage analyses of high-power lithium-ion cells. 4. Cells containing NMC , 2010 .

[16]  Tsutomu Ohzuku,et al.  Novel lithium insertion material of LiCo1/3Ni1/3Mn1/3O2 for advanced lithium-ion batteries , 2003 .

[17]  Kamen Nechev,et al.  Properties of large Li ion cells using a nickel based mixed oxide , 2003 .

[18]  Jeffrey W. Fergus,et al.  Recent developments in cathode materials for lithium ion batteries , 2010 .

[19]  B. Scrosati,et al.  Lithium batteries: Status, prospects and future , 2010 .

[20]  Doron Aurbach,et al.  On the correlation between surface chemistry and performance of graphite negative electrodes for Li ion batteries , 1999 .

[21]  M. Dubarry,et al.  Identifying battery aging mechanisms in large format Li ion cells , 2011 .

[22]  N. Kosova,et al.  From ‘core–shell’ to composite mixed cathode materials for rechargeable lithium batteries by mechanochemical process , 2011 .

[23]  C. Delmas,et al.  Electrochemical and physical properties of the LixNi1$minus;yCoyO2 phases , 1992 .

[24]  D. Guyomard,et al.  Electronic and Ionic Wirings Versus the Insertion Reaction Contributions to the Polarization in LiFePO4 Composite Electrodes , 2010 .

[25]  John Newman,et al.  Experiments on and Modeling of Positive Electrodes with Multiple Active Materials for Lithium-Ion Batteries , 2009 .

[26]  Matthieu Dubarry,et al.  Identify capacity fading mechanism in a commercial LiFePO4 cell , 2009 .

[27]  Xiao-Zhen Liao,et al.  Electrochemical evaluation of composite cathodes base on blends of LiMn2O4 and LiNi0.8Co0.2O2 , 2001 .

[28]  Tsutomu Ohzuku,et al.  Electrochemistry of manganese dioxide in lithium nonaqueous cell. I: X-ray diffractional study on the reduction of electrolytic manganese dioxide , 1990 .

[29]  Kyung Yoon Chung,et al.  In situ X-ray diffraction studies of mixed LiMn2O4–LiNi1/3Co1/3Mn1/3O2 composite cathode in Li-ion cells during charge–discharge cycling , 2009 .

[30]  D. Guyomard,et al.  Ionic vs Electronic Power Limitations and Analysis of the Fraction of Wired Grains in LiFePO4 Composite Electrodes , 2010 .