Cycling performance of low-cost lithium ion batteries with natural graphite and LiFePO4

Shim, Joongpyo; Striebel, Kathryn A.

doi:10.1016/s0378-7753(03)00297-0

Cited by 144 publications

(80 citation statements)

References 7 publications

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“…The data show that these active materials are electrochemically stable during 400 cycles. This result for natural graphite is consistent with those from literature for other types of graphite [11][12][13]. The C/25 behavior of the LiFePO 4 (C/Al) cathode again shows excellent stability, in contrast to the structural degradation and phase segregation seen with the LiNi 0.8 Co 0.15 Al 0.05 O 2 cathodes [10].…”

Section: Electrochemical Diagnosticssupporting

confidence: 90%

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The development of low cost LiFePO4-based high power lithium-ion batteries

Striebel

Shim

Sierra

et al. 2005

Journal of Power Sources

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166

100

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The cycling performance of low-cost LiFePO 4 -based high-power lithium-ion cells was investigated and the components were analyzed after cycling to determine capacity fade mechanisms. Pouch type LiFePO 4 /natural graphite cells were assembled and evaluated by constant C/2 cycling, pulse-power and impedance measurements. From post-test electrochemical analysis after cycling, active materials, LiFePO 4 and natural graphite, showed no degradation structurally or electrochemically. The main reasons for the capacity fade of cell were lithium inventory loss by side reaction and possible lithium deposition on the anode.

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Section: Electrochemical Diagnosticssupporting

confidence: 90%

“…In contrast, our early studies of LiFePO 4 /natural graphite cells showed that lithium inventory loss and structural degradation of the anode were most important. The LiFePO 4 was found to be exceptional stable to long-term cycling [11,12].…”

Section: Electrochemical Diagnosticsmentioning

confidence: 99%

The development of low cost LiFePO4-based high power lithium-ion batteries

Striebel

Shim

Sierra

et al. 2005

Journal of Power Sources

Self Cite

166

100

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“…It is safe, because of a high thermal stability, and has a low toxicity and a low cost compared to cathodes such as LiCoO 2 . Several aging studies concerned with life performance of LFP-based cells are found in the literature [26][27][28][29][30][31][32][33][34][35][36][37][38].…”

Section: Introductionmentioning

confidence: 99%

“…References [26][27][28] reported that the major cause of capacity fade arises from side reactions that consume cyclable lithium and increases the interfacial resistance of the anode. Dubarry et al [29] combined the differential-capacity analysis and SOC tracing of the cell at 600 cycles and concluded that aging mainly results from the formation of a Li-consuming SEI layer at the graphite electrode.…”

Section: Introductionmentioning

confidence: 99%

Calendar aging of a graphite/LiFePO4 cell

Kassem

Bernard

Revel

et al. 2012

Journal of Power Sources

281

124

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Graphite/LFP commercial cells are stored under 3 different conditions of temperature (30°C, 45°C, and 60°C) and SOC (30, 65, and 100%) during up to 8 months. Several non-destructive electrochemical tests are performed at different storage times in order to understand calendar aging phenomena. After storage, all the cells except those stored at 30°C exhibited capacity fade. The extent of capacity fade strongly increases with storage temperature and to a lesser extent with the state of charge. From in-depth data analysis, cyclable lithium loss was identified as the main source of capacity fade. This loss arises from side reactions taking place at the anode, e.g. solvent decomposition leading to the growth of the solid electrolyte interphase. However, the existence of reversible capacity loss also suggests the presence of side reactions occurring at the cathode, which are less prominent than those at the anode. The analyses do not show any evidence about active-material loss in the electrodes. The cells do not suffer substantial change in internal resistance. According to EIS analysis, the overall impedance increase is 70% or less.

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“…Striebel et al [61,62] tested the cycled graphite anode and LFP cathode of a cycled LFP/graphite cell. They found that both the electrodes well-maintained their specific capacity except the loss of lithium inventory.…”

Section: Sphericalmentioning

confidence: 99%

Precipitated silica as filler for polymer electrolyte based on poly(acrylonitrile)/sulfolane

Kurc

2014

J Solid State Electrochem

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The aim of the present work was to perform a preliminary study of the physicochemical properties of hybrid organic-inorganic gel electrolytes for Li-ion batteries based on the PAN/TMS -poly(acrylonitrile)/sulfolane -polymeric matrix and surface-modified precipitated silicas. Modifications were done by means of the so-called dry method using silane U-511 3-methacryloxypropyltrimetoxysilane. Scanning electron microscopy (SEM), noninvasive back scattering method (NIBS), specific surface area (BET), the degree of modification of the silica fillers-Fourier-transform infrared spectroscopy (FT-IR), impedance analysis, and charging/ discharging were carried out. It is found that the silica fillers were homogeneously dispersed in the polymeric matrix, which enhanced conductivity and electrochemical stability of porous polymer electrolytes. Applicability of the prepared gel electrolytes for the Li-ion technology was estimated on the basis of specific conductivity measurements. It was shown that modification of the silica surface by the silane causes an increase in the gel-specific conductivity by about 2 orders of magnitude as compared to gel with unmodified silica.

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Cycling performance of low-cost lithium ion batteries with natural graphite and LiFePO4

Cited by 144 publications

References 7 publications

The development of low cost LiFePO4-based high power lithium-ion batteries

The development of low cost LiFePO4-based high power lithium-ion batteries

Calendar aging of a graphite/LiFePO4 cell

Precipitated silica as filler for polymer electrolyte based on poly(acrylonitrile)/sulfolane

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