Electrochemical lithium insertion into layered manganates

Strobel, Pierre; Mouget, C.

doi:10.1016/0025-5408(93)90076-p

Cited by 69 publications

(23 citation statements)

References 11 publications

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“…Therefore this compound can be considered as among the best manganese oxides for rechargeable lithium batteries. The best results reported by Strobel et al [14] for anhydrous sodium phyllomanganates do not exceed 100 mAh g −1 after the third cycle in the wide voltage range 3.8-1.2 V. In other respects, attractive properties have been recently reported with the 2D Li 0.54 Na 0.02 Mn 0.86 O 2 with a specific capacity of 160 mAh g −1 achieved in the voltage range 4.3-2.5 V at C/15 rate after only 20 cycles [16].…”

Section: Resultsmentioning

confidence: 51%

“…To overcome all these problems, many works have been performed on the synthesis and characterization of other kinds of electrochemically active manganese oxides based on the Na-Mn-O system [9][10][11][12][13][14][15][16][17][18]. Depending on the sodium content, tunnel structures (Na/Mn < 0.45) [10,15] or layered phases (0.45 ≤ Na/Mn ≤ 0.7) are obtained [9,11,[13][14][15][16][17].…”

Section: Introductionmentioning

confidence: 99%

“…Depending on the sodium content, tunnel structures (Na/Mn < 0.45) [10,15] or layered phases (0.45 ≤ Na/Mn ≤ 0.7) are obtained [9,11,[13][14][15][16][17]. Little is known on the electrochemical behaviour of lamellar Na-containing phases as cathodic materials due to the fact that many authors only used this group of lamellar phases as precursor for the synthesis of lithiated layered manganese oxides via an ionexchange procedure [16,18] while data found in [14,17] report low capacities in the range 100-150 mAh g −1 with a poor cycling behaviour.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

A sodium layered manganese oxides as 3V cathode materials for secondary lithium batteries

Bach¹,

Pereira-Ramos²,

Willmann³

2006

Electrochimica Acta

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Section: Resultsmentioning

confidence: 51%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A sodium layered manganese oxides as 3V cathode materials for secondary lithium batteries

Bach¹,

Pereira-Ramos²,

Willmann³

2006

Electrochimica Acta

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“…The charge-discharge curve shape does not change significantly on cycling, and differs considerably from the behaviour of longrange 2D or 3D manganese oxide networks such as spinel or LiMnO 2 . No evidence of conversion to spinel was found, unlike in the case of crystallised birnessites [36,37]. shown in Figure 8.…”

Section: Electrochemical Behaviourmentioning

confidence: 87%

New nanocrystalline manganese oxides as cathode materials for lithium batteries: Electron microscopy, electrochemical and X-ray absorption studies

et al. 2006

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New nanostructured manganese oxi-iodides were prepared by redox reaction of sodium permanganate with lithium iodide in aqueous medium at room temperature. Transmission electron microscopy (TEM) showed that they are nanocrystalline with grain size in the 5-10 nm range. TEM and X-ray absorption confirmed the short-range orderded structure of these compounds, which contain octahedrally coordinated manganese atoms. The electrochemical properties were studied as a function of preparation conditions (Li/Mn ratio, carbon incorporation at the synthesis stage and grinding). Best electrochemical results were obtained either on samples with carbon black incorporated directly in the aqueous reaction medium at the synthesis stage, or on samples with carbon mixed after synthesized, submitted to extensive grinding. Typical capacities in the potential window 1.8-3.8 V are160 and 130 mAh/g at the 40th and 100th cycle, respectively.Step-potential electrochemical spectroscopy and the evolution of X-ray absorption spectra on discharge are consistent with a single-phase lithium intercalation reaction with simultaneous manganese oxidation-reduction.

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“…Recently, birnessites have exhibited their potential use as cathode materials for rechargeable lithium batteries [6][7][8][9][10]. Manganese dioxide is important as a catalyst and as a component of dry cells [11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Synthesis, Spectral, Thermal and CO2 Absorption Studies on Birnessites Type Layered MnO6 Oxide

Ramalingam

Thiyagarajan

Pullarkat

2006

Transition Met Chem

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Birnessite type layered MnO 6 oxides with increased crystallinity were synthesized from six carbohydrates and three dihydric phenols viz., dextrose, starch, fructose, galactose, maltose, lactose, catechol, resorcinol, quinol and KMnO 4 through the formation of a sol-gel. All of the MnO 6 oxides were characterized by powder XRD. The strong signal at 2h $ 12 corresponding to 7.4 Å refers to the Mn-Mn distance between the adjacent layers. The interlayer volume is dispersed with K + ions and H 2 O molecules. The presence of interlayer K + ions is indicated by a signal at 25°, corresponding to a distance of 3.5 Å . IR spectra of the oxides show signature bands at ca. 500 cm )1 due to the stretching modes occurring for MnO 6 entity. A broad band observed at ca. 3300 cm )1 is due to interlayer water molecules. Thermal analysis indicated three stage decomposition with the formation of MnO 2 at ca. 600°C through the intermediate formation of Mn(OH) n . The MnO 6 exhibited a remarkable CO 2 scrubbing ability, which has also been investigated.

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Electrochemical lithium insertion into layered manganates

Cited by 69 publications

References 11 publications

A sodium layered manganese oxides as 3V cathode materials for secondary lithium batteries

A sodium layered manganese oxides as 3V cathode materials for secondary lithium batteries

New nanocrystalline manganese oxides as cathode materials for lithium batteries: Electron microscopy, electrochemical and X-ray absorption studies

Synthesis, Spectral, Thermal and CO2 Absorption Studies on Birnessites Type Layered MnO6 Oxide

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