Lithium storage capability of lithium ion conductor Li1.5Al0.5Ge1.5(PO4)3

Feng, Jinkui; Li, Lü; Lai, M.O.

doi:10.1016/j.jallcom.2010.04.084

Cited by 127 publications

(73 citation statements)

References 34 publications

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“…Since LAGP shows better electrochemical stability than LATP and LLT but reacts with lithium at the potential around 0.8-0.9 V vs. Li/Li þ [10], it is difficult to contact with lithium metal directly, which is needed for precise electrochemical stability measurement [26]. Therefore, we have not examine the stability of ADed LAGP film against lithium metal at present.…”

Section: Resultsmentioning

confidence: 99%

“…Although LAGP is not stable against lithium metal [10], it has a much wider electrochemical potential window than LATP and LLT. For constituting all-solid-state LiB using LAGP, several anode materials operating at high potential for lithium-ion storage such as Li 4 Ti 5 O 12 , TiO 2 and Nb 2 O 5 can be potentially used.…”

Section: Introductionmentioning

confidence: 99%

“…Among various oxide based solid electrolytes, Li 1.5 Al 0.5 -Ge 1.5 (PO 4 ) 3 (LAGP) [4][5][6][7][8][9][10] with NASICON-type framework has several advantages over other electrolytes such as Li 1 þ x Al x Ti 2À x (PO 4 ) 3 (LATP) [11][12][13], Li 2/3À 3x La x TiO 3 (LLT) [14][15][16][17] and Li 7 La 3 Zr 2 O 12 (LLZ) [18][19][20][21]. Although LATP have also NASICON-type structure and higher σ Li than LAGP, LAGP has a wider electrochemical potential window than LATP which reacts with lithium at $ 2.4 V vs. Li/Li þ due to the Ti 4 þ /Ti 3 þ redox reaction [6,9].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Properties of aerosol deposited NASICON-type Li1.5Al0.5Ge1.5(PO4)3 solid electrolyte thin films

Inada

Ishida

Tojo

et al. 2015

Ceramics International

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Properties of aerosol deposited NASICON-type Li1.5Al0.5Ge1.5(PO4)3 solid electrolyte thin films

Inada

Ishida

Tojo

et al. 2015

Ceramics International

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“…This improvement in the performance was attributed to the enhancement of the reversibility of the alloying/de-alloying reaction of GeO 2 with lithium by the carbon coating and the catalytic effect of Ge. Among the Ge-based compounds [433,434], LiGe 2 (PO 4 ) 3 has the most promising electrochemical properties. It adopts the Nasicon-type structure containing GeO 6 octahedra and PO 4 tetrahedra, while Li occupies the 3D channels.…”

Section: Geo 2 and Germanatesmentioning

confidence: 99%

Anodes for Li-Ion Batteries

et al. 2016

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Lithium-ion batteries (LiBs) have made considerable progress since the first commercial one by Sony in 1991, which had LiCoO 2 and graphite as active elements of the positive and negative electrodes, respectively. The LiBs are now the primary energy storage devices in the transportation and communications, from portable use in computers, up to electric and hybrid vehicles. More recently, they have also been used as back-up supply units, frequency regulators (load leveling) to integrate on smart grids the electricity produced by windmills and photovoltaic plants (for a recent review, see [1]). These applications require high energy densities, high power, and safety among others. Considerable efforts have been made to propose other electrodes to fulfill these requirements. We have recently reviewed the works and progress concerning the materials for the positive electrode [2][3][4][5][6]. The present work is devoted to the materials for the negative electrode counterpart. It is common to use the terminology anode and cathode for the negative and positive electrodes, respectively, although the electrodes play alternatively the role of anode and cathode during the charge and discharge process. We shall use this terminology in the following for conciseness purposes only.An ideal active anode element should fulfill the following requirements as follows: (1) It must be light and accommodate as much Li as possible to optimize the gravimetric capacity. (2) Its redox potential with respect to Li 0 /Li + must be as small as possible at any Li-concentration. The reason is that this potential is subtracted to the redox potential of the cathode material to give the overall voltage of the cell, and smaller voltage means smaller energy density. (3) It must possess good electronic and ionic conductivities since faster motion of the lithium ions and the electrons also mean higher power density of the cell. (4) It must not be soluble in the solvents of the electrolyte and not react with the lithium salt. (5) It must be safe, i.e. avoid any thermal runaway of the battery, a criterion that is not independent of the previous one, but deserves special attention, especially for use in transportation such as electric vehicles and planes. (6) It must be cheap and environmentally friendly. The different materials proposed as anode elements for Li-ion batteries must be discussed with respect to these different criteria.The graphite is still the most used anode material and is still the reference. The first works giving evidence of the insertion of lithium in graphite date from 1955 [7], confirmed by the synthesis of LiC 6 in 1965 [8]. The synthesis of LiC 6 , however, was not obtained by electrochemical process at that time. Another decade was spent before Besenhard and Eichinger discovered the reversible intercalation of lithium in graphite, proposing this material as an anode in 1976 [9,10]. Increasing the Li content in LiC 6 is possible [8], but no reversible cycling beyond LiC 6 could ever be obtained. The graphite anode can thus be cyc...

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“…The LAGP has an advantage for electrochemical window because Ge 4+ is insensitive to reduction 12 in contrast with Ti 4+ . The LAGP preparation has been performed by melt-quenching [13][14][15] or solid-solution method 16 . These methods need high temperature (> 1000 o C).…”

Section: Introductionmentioning

confidence: 99%

PREPARATION OF Li1.5Al0.5Ge1.5(PO4)3 SOLID ELECTROLYTE BY SOL-GEL METHOD

Kotobuki

Hoshina

Isshiki

et al. 2011

Phosphorus Research Bulletin

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Li 1+x Al x Ge 2-x (PO 4 ) 3 (LAGP) solid electrolyte is one of the promising solid electrolytes for lithium ion batteries. The LAGP electrolyte was prepared by a sol-gel method. A gelation powder was calcined at 500 o C to obtain precursor powder for LAGP. The obtained powder was pelletized and calcined at 800, 850, and 900 o C. The pellets possessed NASICON structure, indicating that the LAGP was successfully prepared. The pellet calcined at 850 o C showed the highest lithium ion conductivity, 1.4×10 -4 S cm -1 , which is acceptable for all-solid-state lithium battery. Although some modification is still needed to improve the lithium ion conductivity of LAGP prepared by the sol-gel method, this finding provides us a new route for LAGP preparation.

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Lithium storage capability of lithium ion conductor Li1.5Al0.5Ge1.5(PO4)3

Cited by 127 publications

References 34 publications

Properties of aerosol deposited NASICON-type Li1.5Al0.5Ge1.5(PO4)3 solid electrolyte thin films

Properties of aerosol deposited NASICON-type Li1.5Al0.5Ge1.5(PO4)3 solid electrolyte thin films

Anodes for Li-Ion Batteries

PREPARATION OF Li<sub>1.5</sub>Al<sub>0.5</sub>Ge<sub>1.5</sub>(PO<sub>4</sub>)<sub>3</sub> SOLID ELECTROLYTE BY SOL-GEL METHOD

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