Development and characterization of bipolar lithium composite polymer electrolyte (CPE)-FeS2 battery for applications in electric vehicles

Peled, E.; Ardel, G.; Lang, Jinxin; Lavi, Y.

doi:10.1016/0378-7753(94)02134-o

Cited by 42 publications

(17 citation statements)

References 8 publications

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“…In particular, the Li/FeS 2 primary battery operating at ambient temperature was already commercialized as early as the 1980's [5], and FeS 2 was proven to be highly reversible in rechargeable lithium batteries operated at high temperatures (375-500 C) [6,7]. Other publications have shown that Li/FeS 2 batteries are capable of being cycled up to 500 cycles in a moderate temperature range of 90-130 C by employing a composite polymer electrolyte [8][9][10]. However, the attempts to develop a rechargeable lithium battery at ambient temperature have not been successful due to the poor recyclability of FeS 2 , which was attributed to the different redox mechanism of FeS 2 in nonaqueous electrolytes.…”

Section: Introductionmentioning

confidence: 99%

Electrochemical verification of the redox mechanism of FeS2 in a rechargeable lithium battery

Zhang

Tran

2015

Electrochimica Acta

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Section: Introductionmentioning

confidence: 99%

Electrochemical verification of the redox mechanism of FeS2 in a rechargeable lithium battery

Zhang

Tran

2015

Electrochimica Acta

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“…15 Based on the above redox mechanism, the C-FeS 2 composites [16][17][18][19][20][21] and carbon-modified/wrapped FeS 2 materials [22][23][24][25] with various novel structures, such as nanocrystals, 4 microspheres 26,27 and core-shell structures, 28 have been widely synthesized to improve the cyclability and power capability of the Li/FeS 2 cells. On the other hand, the solid-state electrolyte, 11,[29][30][31][32] polymer composite electrolyte, 6,11,29,30 and ionic liquid 33 have been proposed to prevent the dissolution of Li 2 S n . More recently, the strong nucleophilic reactivity of polysulfide anions has come into attention, and it has been recognized that the carbonate-based electrolytes currently z E-mail: shengshui.zhang.civ@mail.mil; shengshui@gmail.com used in state-of-the-art Li-ion batteries are chemically incompatible with the Li/FeS 2 chemistry.…”

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confidence: 99%

Mechanism and Solution for the Capacity Fading of Li/FeS₂Battery

Zhang

Tran

2016

J. Electrochem. Soc.

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Development of Li/FeS 2 rechargeable batteries has been hampered by their short cycle life. In this paper, we start with the fundamental chemistry of FeS 2 in a non-aqueous liquid electrolyte to analyze the capacity fading mechanism of Li/FeS 2 batteries and propose three facile strategies for stabilizing capacity. It is repeatedly observed that the capacity fading of Li/FeS 2 cells follows a general mode consisting of a fast fading stage as Region 1, a slow fading stage as Region 2, and an accelerated fading stage as Region 3. We found that Region 1 is mainly attributed to the dissolution of lithium polysulfide leading to the loss of sulfur active material, and that Region 3 is mainly associated with the poor morphology of Li deposition resulting in the localized electric circuit shortening. The powder-like, small and loose Li particles not only react with electrolyte solvents drying-out the cell but also penetrate across the separator shortening the cell. Based on the above finding, the cycle life of Li/FeS 2 cells was improved by adding vinylene carbonate as the electrolyte additive, increasing mechanical pressure between two electrodes, and placing a carbon interlayer between the FeS 2 cathode and separator, respectively.

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“…[1][2][3][4][5][6][7][8][9][10] However, because they do not contain lithium, their application to the positive electrode in cells with lithium-free negative electrode materials such as carbon or silicon-based alloys is limited.…”

Section: Introductionmentioning

confidence: 99%

Preparation of Novel Electrode Materials Based on Lithium Niobium Sulfides

et al. 2014

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Novel lithium niobium sulfide electrode materials, xLi 2 S·NbS 2 ·(2−x)S (x = 1/2-2), were mechanochemically synthesized using Li 2 S, NbS 2 , and S 8 as starting materials, and their electrochemical performance was investigated. The electrodes with x = 1/2 were in amorphous phase, while those with x = 1 and 3/2 are assigned as cubic phase. Cells prepared with these electrodes charge and discharge reversibly, with a capacity of ca. 400 mAh g

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Development and characterization of bipolar lithium composite polymer electrolyte (CPE)-FeS2 battery for applications in electric vehicles

Cited by 42 publications

References 8 publications

Electrochemical verification of the redox mechanism of FeS2 in a rechargeable lithium battery

Electrochemical verification of the redox mechanism of FeS2 in a rechargeable lithium battery

Mechanism and Solution for the Capacity Fading of Li/FeS₂Battery

Preparation of Novel Electrode Materials Based on Lithium Niobium Sulfides

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Development and characterization of bipolar lithium composite polymer electrolyte (CPE)-FeS2 battery for applications in electric vehicles

Cited by 42 publications

References 8 publications

Electrochemical verification of the redox mechanism of FeS2 in a rechargeable lithium battery

Electrochemical verification of the redox mechanism of FeS2 in a rechargeable lithium battery

Mechanism and Solution for the Capacity Fading of Li/FeS2Battery

Preparation of Novel Electrode Materials Based on Lithium Niobium Sulfides

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Mechanism and Solution for the Capacity Fading of Li/FeS₂Battery