FR2493607A2 - Electrochemical generator with lithium transition metal sulphide - positive electrode, for use in portable articles, e.g. watches and pacemakers - Google Patents
Electrochemical generator with lithium transition metal sulphide - positive electrode, for use in portable articles, e.g. watches and pacemakers Download PDFInfo
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- H—ELECTRICITY
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- H01M6/00—Primary cells; Manufacture thereof
- H01M6/14—Cells with non-aqueous electrolyte
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Abstract
Description
Générateur au lithium
On a décrit au brevet principal un générateur électrochimique comportant une électrode positive et une électrode négative en contact avec un électrolyte liquide, caractérisé par le fait que ladite électrode positive comporte un composé actif de formule générale AUX MU S dans laquelle A est un métal alcalin notamment le lithium, le
z sodium ou le potassium, M est un métal de transition notamment le fer, le cuivre, le plomb ou le nickel, S est du soufre ou du selenium, x étant compris entre O et 2, y étant compris entre 1 et 2 et z étant compris entre 1 et 4.Lithium generator
The main patent describes an electrochemical generator comprising a positive electrode and a negative electrode in contact with a liquid electrolyte, characterized in that said positive electrode comprises an active compound of general formula AUX MU S in which A is an alkali metal in particular lithium,
z sodium or potassium, M is a transition metal, in particular iron, copper, lead or nickel, S is sulfur or selenium, x being between O and 2, including between 1 and 2 and z being between 1 and 4.
En poursuivant ltétude systématique de tels composés actifs, la Demanderesse a constaté que l'on peut également mettre en oeuvre le cobalt. By continuing the systematic study of such active compounds, the Applicant has found that cobalt can also be used.
Elle a en outre en particulier constaté que des composés du type LixMS2 et Li#MS 1,5 et notamment Li2MS2 et Li2MS1,5 préparés conformément à la présente addition présentaient des propriétés électrochimiques particulièrement intéressantes, notamment une capacité élevée et stable même après un nombre élevé de cycles charge/décharge, ainsi qu'une remarquable réversibilité. It also found in particular that compounds of the type LixMS2 and Li # MS 1.5 and in particular Li2MS2 and Li2MS1.5 prepared in accordance with the present addition exhibited particularly advantageous electrochemical properties, in particular a high and stable capacity even after a number high charge / discharge cycles, as well as remarkable reversibility.
M représente notamment le nickel, le cobalt, le cuivre. M represents in particular nickel, cobalt, copper.
La toporéduction d'une telle structure s'effectue par intercalation d'ions alcalins dans les divers sites disponibles toctraédriques et/ou tétraédriques), des structures synthétisées. The topreduction of such a structure is carried out by intercalation of alkaline ions in the various available sites (toctrahedral and / or tetrahedral), synthesized structures.
La Demanderesse a pu établir que la structure de ces composés, est lamellaire. The Applicant has been able to establish that the structure of these compounds is lamellar.
L'invention a donc pour objet un générateur électrochimique comportant une électrode positive, une électrode négative en contact avec un électrolyte liquide selon la revendication 1 du brevet principal, ladite électrode positive comportant un composé actif de formule générale A My S dans laquelle A est un métal alcalin notamment le lithium, le sodium ou le potassium, M est un métal de transition
S est du soufre ou du selenium, x étant compris entre O et 2, y étant compris entre 1 et 2, et z étant compris entre 1 et 4, caractérisé par le fait que ledit composé actif correspond à la formule L1xMS2 ou LixMSî > S, M étant choisi parmi le nickel, le cobalt et le cuivre. The subject of the invention is therefore an electrochemical generator comprising a positive electrode, a negative electrode in contact with a liquid electrolyte according to claim 1 of the main patent, said positive electrode comprising an active compound of general formula A My S in which A is a alkali metal, in particular lithium, sodium or potassium, M is a transition metal
S is sulfur or selenium, x being between O and 2, including between 1 and 2, and z being between 1 and 4, characterized in that said active compound corresponds to the formula L1xMS2 or LixMSî> S , M being chosen from nickel, cobalt and copper.
D'autres caractéristiques et avantages de l'invention ressortiront de la description qui suit donnée à titre d'exemple purement illustratif mais nullement limitatif en référence aux dessins et diagrammes annexés dans lesquels
La figure 1 représente un générateur du type bouton selon l'invention.Other characteristics and advantages of the invention will emerge from the description which follows, given by way of purely illustrative but in no way limiting, with reference to the appended drawings and diagrams in which
Figure 1 shows a button type generator according to the invention.
Les figures 2 et 3 sont des diagrammes représentant les performances électriques de générateurs selon l'invention. Figures 2 and 3 are diagrams showing the electrical performance of generators according to the invention.
De tels composés sont préparés conformément au processus suivant
On réalise un mélange de sulfure de lithium Li2S et de 1 ou 2 moles de sulfure FIS. Ce mélange est introduit dans une ampoule que l'on scelle sous vide et que l'on chauffe à une température de l'ordre de 700 à 10000C pouvant être maintenue jusqu'à 3 semaines environ. On a obtenu ainsi le composé Li2MS2 ou Li2MS1,5 qu'on peut utiliser tel quel ou après oxydation soit par voie chimique soit par voie électrochimique pour obtenir LiXMS2 ou LiXMS1 5. Such compounds are prepared according to the following process
A mixture of lithium sulfide Li2S and 1 or 2 moles of FIS sulfide is produced. This mixture is introduced into an ampoule which is sealed under vacuum and which is heated to a temperature of the order of 700 to 10000C which can be maintained for approximately 3 weeks. The compound Li2MS2 or Li2MS1.5 was thus obtained which can be used as such or after oxidation either chemically or electrochemically to obtain LiXMS2 or LiXMS1 5.
M est choisi parmi le nickel, le cobalt et le cuivre. M is chosen from nickel, cobalt and copper.
La voie chimique consiste à effectuer la topooxydation par une solution d'iode dans liacétonitrile. The chemical route consists of carrying out topooxidation with a solution of iodine in acetonitrile.
La voie électrochimique consiste par exemple à effectuer la topooxydation dans un électrolyte tel que le dioxolanne renfermant en solution du perchlorate de lithium. The electrochemical route consists, for example, in carrying out topooxidation in an electrolyte such as dioxolane containing lithium perchlorate in solution.
Le composé de départ Li2S est obtenu par réaction à chaud entre un courant de sulfure de carbone et le carbonate de lithium à une température de l'ordre de 5000C
Conformément au brevet principal de tels composés peuvent être mis en oeuvre dans des générateurs à électrode négative de lithium comme il va être rappelé dans ce qui suit.The starting compound Li2S is obtained by hot reaction between a stream of carbon sulphide and lithium carbonate at a temperature of the order of 5000C
In accordance with the main patent, such compounds can be used in generators with a negative lithium electrode as will be recalled below.
L'électrode positive Elle comporte donc ledit composé Li MS2 ou Li MS En outre,
1,5 elle peut comporter d'autres matériaux nécessaires pour assurer une bonne conductivité électronique ou un bon contact avec le collecteur, à savoir du carbone, du graphite, du cuivre, du nickel, du fer ou un élément de transition. The positive electrode It therefore comprises said compound Li MS2 or Li MS In addition,
1.5 it may include other materials necessary to ensure good electronic conductivity or good contact with the collector, namely carbon, graphite, copper, nickel, iron or a transition element.
L'électrode négative
Elle comporte un métal alcalin notamment le lithium.The negative electrode
It comprises an alkali metal, in particular lithium.
Le collecteur devra être confectionné en un matériau à faible corrosion au potentiel de cette électrode. The collector must be made of a material with low corrosion at the potential of this electrode.
A titre d'exemple on pourra utiliser comme collecteur un élément des colonnes IVb, Vb, VIb, VIIb, VIII de la classification périodique, ainsi que du cuivre, de l'argent, du zinc, de l'aluminium ou un quelconque de leurs alliages. By way of example, it is possible to use as collector an element from columns IVb, Vb, VIb, VIIb, VIII of the periodic table, as well as copper, silver, zinc, aluminum or any of their alloys.
L'électrolyte
Il comporte un solvant organique stable vis-à-vis de l'électrode positive et de l'électrode négative, dans lequel se trouve en solution un sel de métal alcalin.The electrolyte
It comprises an organic solvent which is stable with respect to the positive electrode and the negative electrode, in which an alkali metal salt is present in solution.
Plus précisément, ledit solvant peut être choisi parmi le carbonate de propylène, le dioxolanne, le diméthoxyéthane, le nitrométhane, le tétrahydrofuranne, généralement les éthers cycliques, ou des éthers linéaires solides ou polymérisés. More specifically, said solvent can be chosen from propylene carbonate, dioxolane, dimethoxyethane, nitromethane, tetrahydrofuran, generally cyclic ethers, or solid or polymerized linear ethers.
Le sel alcalin peut être choisi parmi les perchlorates, les hexafluoroborates, les hexafluoroarséniates, les nitrates, les sulfates les methylchlorosulfonates et autres. The alkaline salt can be chosen from perchlorates, hexafluoroborates, hexafluoroarseniates, nitrates, sulfates, methylchlorosulfonates and others.
L'électrolyte peut également être un polymère tel que le polyoxyéthylène dans lequel on a dissous 40% en poids de LiCl04, ou un sel fondu, notamment un mélange de LiCl/KCl fondant à 4500C. The electrolyte can also be a polymer such as polyoxyethylene in which 40% by weight of LiCl04 has been dissolved, or a molten salt, in particular a mixture of LiCl / KCl melting at 4500C.
On va donner maintenant en référence à la figure 1 un mode de réalisation pratique d'un générateur électrochimique selon l'invention, du type "bouton". We will now give with reference to FIG. 1 a practical embodiment of an electrochemical generator according to the invention, of the "button" type.
Sur la figure 1, on a représenté en 1 la masse active positive, en 2 la masse active négative, et en 3 un séparateur poreux imprégné d'électrolyte. Les références 4 et 5 désignent respectivement les collecteurs positif et négatif en forme de coupelles. In Figure 1, there is shown in 1 the positive active mass, in 2 the negative active mass, and in 3 a porous separator impregnated with electrolyte. References 4 and 5 respectively designate the positive and negative collectors in the form of cups.
La masse active positive 1 en l'occurrence LixMS2 est comprimée dans la coupelle 4 et cela en atmosphère d'azote sec. The positive active mass 1 in this case LixMS2 is compressed in the cup 4 and this in an atmosphere of dry nitrogen.
La masse active négative 2 en l'occurrence du lithium dont la capacité est voisine de 150 mAh/cm2 est comprimée sous argon dans la coupelle 5. Le séparateur 3 est du type cellulosique et il est imprégné d'électrolyte. The negative active mass 2, in this case lithium, the capacity of which is close to 150 mAh / cm 2, is compressed under argon in the cup 5. The separator 3 is of the cellulosic type and it is impregnated with electrolyte.
On va donner maintenant quelques exemples concrets selon l'inven tion. We will now give some concrete examples according to the invention.
1er EXEMPLE
On mélange dans une ampoule 1 mole de Li2S et 1 mole de NiS.1st EXAMPLE
1 mole of Li2S and 1 mole of NiS are mixed in an ampoule.
Cette ampoule est scellée sous vide. En fin de réaction conduite à une température de 7900C durant 3 semaines on obtient environ 6g de Li2NiS2. L'étude cristallographique du composé obtenu révèle que son spectre aux rayons X diffère de ceux de NiS et de NiS2 d'où son originalité.This ampoule is vacuum sealed. At the end of the reaction carried out at a temperature of 7900C for 3 weeks, approximately 6 g of Li2NiS2 are obtained. The crystallographic study of the compound obtained reveals that its X-ray spectrum differs from those of NiS and NiS2, hence its originality.
Ces spectres sont donnés dans le tableau ci-dessous. These spectra are given in the table below.
NiS Li2NiS2 NiS2 4,766 (F) 3,306 (TF) 3,27 (f)
2,986 (F) 2,83 (TF) 2,942 (m) 2,860 (m) 2,54 (m)
2,692 (f) 2,32 (m) 2,842 (tf) 2,605 (f) 2,00 (m)
2,440 (f) 1,892 (tf) 2,773 (TF) 2,238 (tf) 1,707 (F)
2,028 (F) 1,634 (f) 2,696 (f) 1,996 (TF) 1,570 (f)
1,872 (f) 1,514 (f) 2,506 (TF) 1,826 (tf) 1,375 (tf)
1,765 (tf) 1,336 (tf) 2,396 (f) 1,726 (TF) 1,304 (f)
1,655 (f) 1,208 (f) 2,225 (TF) 1,635 (f > 1,158 (f)
1,536 (f) 1,133 (tf) 2,092 (Tf) 1,494 (f) 1,113 (tf)
1,452 (tf) 1,061 (f) 1,955 (tf) 1,436 (m) 1,053 (f)
1,345 (f) 1,903 (tf) 1,316 (m) 1,035 (f)
1,306 (m) 1,003 (f) 1,861 (TF) 1,284 (f) 0,956 (tf)
1,227 (tf) 1,812 (F) 1,171 (m)
1,088 (tf) 1,734 (F) 1,129 (f)
1,104 (m) 1,687 (tf) 1,053 (ni)
1,034 (f) 1,652 (tf) 1,007 (f)
0,990 (f) 1,630 (m) 0,964 (f)
0,951 (f)
1,595 (m) 0,903 (f)
0,871 (f)
1,544 (m) 0,861 (p)
0,855 (f)
0,825 (f)
0,817 (f)
0,800 (f)
Dans ce tableau, f signifie une intensité faible tf " n n très faible
m " " " moyenne
F " " " forte TF " n 1 très forte
Le composé Li2NiS2 ainsi synthétisé peut etre oxydé en LiXNiS2, au moyen d'une solution d'iode dans l'acétonitrile par exemple.NiS Li2NiS2 NiS2 4.766 (F) 3.306 (TF) 3.27 (f)
2.986 (F) 2.83 (TF) 2.942 (m) 2.860 (m) 2.54 (m)
2,692 (f) 2.32 (m) 2,842 (tf) 2,605 (f) 2.00 (m)
2,440 (f) 1,892 (tf) 2,773 (TF) 2,238 (tf) 1,707 (F)
2,028 (F) 1,634 (f) 2,696 (f) 1,996 (TF) 1,570 (f)
1.872 (f) 1.514 (f) 2.506 (TF) 1.826 (tf) 1.375 (tf)
1.765 (tf) 1.336 (tf) 2.396 (f) 1.726 (TF) 1.304 (f)
1.655 (f) 1.208 (f) 2.225 (TF) 1.635 (f> 1.158 (f)
1.536 (f) 1.133 (tf) 2.092 (Tf) 1.494 (f) 1.113 (tf)
1.452 (tf) 1.061 (f) 1.955 (tf) 1.436 (m) 1.053 (f)
1.345 (f) 1.903 (tf) 1.316 (m) 1.035 (f)
1.306 (m) 1.003 (f) 1.861 (TF) 1.284 (f) 0.956 (tf)
1.227 (tf) 1.812 (F) 1.171 (m)
1.088 (tf) 1.734 (F) 1.129 (f)
1.104 (m) 1.687 (tf) 1.053 (ni)
1.034 (f) 1.652 (tf) 1.007 (f)
0.990 (f) 1.630 (m) 0.964 (f)
0.951 (f)
1.595 (m) 0.903 (f)
0.871 (f)
1.544 (m) 0.861 (p)
0.855 (f)
0.825 (f)
0.817 (f)
0.800 (f)
In this table, f signifies a very low intensity tf "nn
m """medium
F """strongTF" n 1 very strong
The Li2NiS2 compound thus synthesized can be oxidized to LiXNiS2, by means of a solution of iodine in acetonitrile for example.
2ème EXEMPLE
On a réalisé des générateurs du type bouton tels que décrits ci-dessus, la matière active positive comportant le composé LiXNiS2 sous une épaisseur de 1,6mm et une surface de 0,78cm . L'électrode négative est une feuille de lithium de imm d'épaisseur. L'électrolyte est du dioxolanne renfermant du LiClO4 en concentration bimolaire, la capacité étant de 72 mAh.2nd EXAMPLE
Generators of the button type were produced as described above, the positive active material comprising the compound LiXNiS2 with a thickness of 1.6 mm and an area of 0.78 cm. The negative electrode is a lithium sheet of imm thickness. The electrolyte is dioxolane containing LiClO4 in bimolar concentration, the capacity being 72 mAh.
La courbe représentée figure 2 donne le potentiel en circuit ouvert E en volts pour des composés LiXNiS2 en fonction de x 3ème EXEMPLE
On a synthétisé le composé Li2CuS1,5 en mélangeant 2 moles de Li2S et 1 mole de CuS et en portant le mélange à une température de 8000C. Le tableau ci-dessous donne le spectre de poudre aux rayons X de ce composé comparé aux spectres de poudre de Cus et de Cu2S.The curve shown in Figure 2 gives the open circuit potential E in volts for LiXNiS2 compounds as a function of x 3rd EXAMPLE
The compound Li2CuS1.5 was synthesized by mixing 2 moles of Li2S and 1 mole of CuS and bringing the mixture to a temperature of 8000C. The table below gives the X-ray powder spectrum of this compound compared to the Cus and Cu2S powder spectra.
On observe également que les spectres sont distincts, ce qui corrobore l'originalité du composé. It is also observed that the spectra are distinct, which corroborates the originality of the compound.
Cu2S Li2Cu S1 5 Cu S
d ( ) d (A) d (A)
tf 8,18
m 6,32
f 5,04
f 4,46 tf 4,24 tf 4,17 f 3,73 f 3,59 tf 3,41 f 3,27 F 3,281 f 3,285 ni 2,18 m 3,22 m 3,15 tf 3,15 f 3,05 F 3,05 m 2,94 f 2,96 f 2,87 f 2,81 TF 2,81 f 2,75 m 2,72 F 2,72 f 2,66 f 2,67 f 2,61 tf 2,62 f 2,55 tf 2,55 m 2,52 m 2,47 f 2,46
F 2,40 m 2,33 tf 2,32 f 2,94 tf 2,27 m 2,21 tf 2,22
m 2,15 tf 2,09 tf 2,10 tf 2,10
m 2,04 tf 2,04 f 2,00 TF 1,99
TF 1,98 m 1.95 f 1,91 tf 1,92 f 1,90
f 1,89 F 1,89
F 1,88
f 1,80
f 1,79 f 1,77
m 1,70 m 1,70 m 1,74
F 1,65 f 1,65
tf 1,63 tf 1,63
tf 1,61
f 1,57
f 1,53 f 1,53 m 1,55
f 1,48 tf 1,46
m 1,41 tf 1,39
tf 1,36 tf 1,36 tf 1,35
f 1,33 tf 1,34
f 1,29 f 1,30 tf 1,28
La courbe représentée figure 3 donne le potentiel en circuit ouvert E en volts en fonction de x pour des composés LixCuS1 5 montés dans des générateurs du type de celui décrit au 2ème exemple.Cu2S Li2Cu S1 5 Cu S
d () d (A) d (A)
tf 8.18
m 6.32
f 5.04
f 4.46 tf 4.24 tf 4.17 f 3.73 f 3.59 tf 3.41 f 3.27 F 3.281 f 3.285 ni 2.18 m 3.22 m 3.15 tf 3.15 f 3 .05 F 3.05 m 2.94 f 2.96 f 2.87 f 2.81 TF 2.81 f 2.75 m 2.72 F 2.72 f 2.66 f 2.67 f 2.61 tf 2.62 f 2.55 tf 2.55 m 2.52 m 2.47 f 2.46
F 2.40 m 2.33 tf 2.32 f 2.94 tf 2.27 m 2.21 tf 2.22
m 2.15 tf 2.09 tf 2.10 tf 2.10
m 2.04 tf 2.04 f 2.00 TF 1.99
TF 1.98 m 1.95 f 1.91 tf 1.92 f 1.90
f 1.89 F 1.89
F 1.88
f 1.80
f 1.79 f 1.77
m 1.70 m 1.70 m 1.74
F 1.65 f 1.65
tf 1.63 tf 1.63
tf 1.61
f 1.57
f 1.53 f 1.53 m 1.55
f 1.48 tf 1.46
m 1.41 tf 1.39
tf 1.36 tf 1.36 tf 1.35
f 1.33 tf 1.34
f 1.29 f 1.30 tf 1.28
The curve shown in Figure 3 gives the open circuit potential E in volts as a function of x for LixCuS1 5 compounds mounted in generators of the type described in the 2nd example.
4ème EXEMPLE
On a synthétisé le composé Li2CoS2.4th EXAMPLE
The compound Li2CoS2 was synthesized.
le tableau ci-dessous donne le spectre de poudre aux rayons X de ce composé comparé aux spectres de poudre de CoS 1,035 et CoS
1,035 2
On observe également dans ce cas que les spectres sont distincts. the table below gives the X-ray powder spectrum of this compound compared to the powder spectra of CoS 1.035 and CoS
1.035 2
It is also observed in this case that the spectra are distinct.
CoS Li2CoS2 CoS2
d ( )
tf 5,72
tf 4,64
F 3,29 tf 3,20
2,99 f 2,93 f 2,91
f 2,85 F 2,77 f 2,54 f 2,54
m 2,48
tf 2,27 m 2,26
m 2,02
TF 1,95 m 1,94 m 1,96
tf 1,92
f 1,75
m 1,72 m 1,69 f 1,69 TF 1,67
tf 1,65
tf 1,60
f 1,54 f 1,50 tf 1,47 m 1,48 f 1,41 f 1,43
tf 1,34 f 1,41 f 1,43
tf 1,34 f 1,30 f 1,31 tf 1,30 f 1,28 f 1,29
f 1,27 f 1,27
tf 1,24 f 1,24 tf 1,20 f 1,21 f 1,19 m 1,17 tf 1,18 tf 1,12 tf 1,11 tf 1,11 m 1,10
f- 1,08 tf 1,08 tf 1,09
TF 1,06
tf 1,04 m 1,03
F 1,03 f 1,03
F 1,02 f 1,01 B 1,01 5ème EXEMPLE
Les masses actives précédentes ont été utilisées dans des générateurs à électrolyte fondu du type LiCl/KCl à 4500C
Il a été constaté dans tous les cas une excellente reversibilité des générateurs qui fonctionnent tous entre 1,3 et 2,5 volts sous 10 ss A/cm2. CoS Li2CoS2 CoS2
d ()
tf 5.72
tf 4.64
F 3.29 tf 3.20
2.99 f 2.93 f 2.91
f 2.85 F 2.77 f 2.54 f 2.54
m 2.48
tf 2.27 m 2.26
m 2.02
TF 1.95 m 1.94 m 1.96
tf 1.92
f 1.75
m 1.72 m 1.69 f 1.69 TF 1.67
tf 1.65
tf 1.60
f 1.54 f 1.50 tf 1.47 m 1.48 f 1.41 f 1.43
tf 1.34 f 1.41 f 1.43
tf 1.34 f 1.30 f 1.31 tf 1.30 f 1.28 f 1.29
f 1.27 f 1.27
tf 1.24 f 1.24 tf 1.20 f 1.21 f 1.19 m 1.17 tf 1.18 tf 1.12 tf 1.11 tf 1.11 m 1.10
f- 1.08 tf 1.08 tf 1.09
TF 1.06
tf 1.04 m 1.03
F 1.03 f 1.03
F 1.02 f 1.01 B 1.01 5th EXAMPLE
The preceding active masses were used in generators with molten electrolyte of the LiCl / KCl type at 4500C
In all cases, excellent reversibility of the generators has been found, which all operate between 1.3 and 2.5 volts at 10 ss A / cm2.
6ème EXEMPLE
La matière active est utilisée dans un générateur secondaire dont l'électrolyte est un polymère du type polyoxyethylène dans lequel a été dissous 40% en poids de Licol04. EXAMPLE 6
The active ingredient is used in a secondary generator, the electrolyte of which is a polymer of the polyoxyethylene type in which 40% by weight of Licol04 has been dissolved.
Les performances sont comparables à celles des précédents exemples. The performances are comparable to those of the previous examples.
L'invention est applicable aux générateurs portatifs pour montres, pacemakers et autres. The invention is applicable to portable generators for watches, pacemakers and others.
Bien entendu l'invention n'est nullement limitée aux modes de réalisation décrits et représentés, mais elle en couvre au contraire toutes les variantes. Of course, the invention is in no way limited to the embodiments described and shown, but on the contrary covers all of its variants.
Claims (12)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8023197A FR2493607A2 (en) | 1978-03-24 | 1980-10-30 | Electrochemical generator with lithium transition metal sulphide - positive electrode, for use in portable articles, e.g. watches and pacemakers |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7808662A FR2420852A1 (en) | 1978-03-24 | 1978-03-24 | LITHIUM GENERATOR |
FR8023197A FR2493607A2 (en) | 1978-03-24 | 1980-10-30 | Electrochemical generator with lithium transition metal sulphide - positive electrode, for use in portable articles, e.g. watches and pacemakers |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2493607A2 true FR2493607A2 (en) | 1982-05-07 |
FR2493607B2 FR2493607B2 (en) | 1983-10-14 |
Family
ID=26220518
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8023197A Granted FR2493607A2 (en) | 1978-03-24 | 1980-10-30 | Electrochemical generator with lithium transition metal sulphide - positive electrode, for use in portable articles, e.g. watches and pacemakers |
Country Status (1)
Country | Link |
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FR (1) | FR2493607A2 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4481267A (en) * | 1983-04-01 | 1984-11-06 | Duracell Inc. | Insoluble heavy metal polysulfide cathodes |
FR2578686A1 (en) * | 1985-03-05 | 1986-09-12 | Accumulateurs Fixes | ELECTROCHEMICAL GENERATOR WITH NEGATIVE ACTIVE MATERIAL BASED ON ALKALI OR ALKALINOTERREAL METAL |
EP0905807A1 (en) * | 1997-09-26 | 1999-03-31 | Mitsubishi Chemical Corporation | Nonaqueous secondary battery |
WO2010043886A2 (en) * | 2008-10-14 | 2010-04-22 | Iti Scotland Limited | Lithium containing transition metal sulfide compounds |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
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FR2232841A1 (en) * | 1973-06-11 | 1975-01-03 | Rockwell International Corp | |
FR2243528A1 (en) * | 1973-09-10 | 1975-04-04 | Exxon Research Engineering Co | |
EP0000197A1 (en) * | 1977-06-27 | 1979-01-10 | Western Electric Company, Incorporated | Rechargeable non-aqueous cell with a chalcogenide-containing electrode, a method for preparing the chalcogenide compound and a method for the preparation of the cell |
US4143213A (en) * | 1978-04-26 | 1979-03-06 | Exxon Research & Engineering Co. | Cells having cathodes containing chalcogenide compounds of the formula Ma FeXb and species thereof exhibiting alkali metal incorporation |
US4164069A (en) * | 1978-04-28 | 1979-08-14 | The United States Of America As Represented By The United States Department Of Energy | Method of preparing a positive electrode for an electrochemical cell |
GB2029081A (en) * | 1978-08-21 | 1980-03-12 | Brandt K | Lithium molybenum disulphide battery cathode |
-
1980
- 1980-10-30 FR FR8023197A patent/FR2493607A2/en active Granted
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2232841A1 (en) * | 1973-06-11 | 1975-01-03 | Rockwell International Corp | |
FR2243528A1 (en) * | 1973-09-10 | 1975-04-04 | Exxon Research Engineering Co | |
EP0000197A1 (en) * | 1977-06-27 | 1979-01-10 | Western Electric Company, Incorporated | Rechargeable non-aqueous cell with a chalcogenide-containing electrode, a method for preparing the chalcogenide compound and a method for the preparation of the cell |
US4143213A (en) * | 1978-04-26 | 1979-03-06 | Exxon Research & Engineering Co. | Cells having cathodes containing chalcogenide compounds of the formula Ma FeXb and species thereof exhibiting alkali metal incorporation |
US4164069A (en) * | 1978-04-28 | 1979-08-14 | The United States Of America As Represented By The United States Department Of Energy | Method of preparing a positive electrode for an electrochemical cell |
GB2029081A (en) * | 1978-08-21 | 1980-03-12 | Brandt K | Lithium molybenum disulphide battery cathode |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4481267A (en) * | 1983-04-01 | 1984-11-06 | Duracell Inc. | Insoluble heavy metal polysulfide cathodes |
FR2578686A1 (en) * | 1985-03-05 | 1986-09-12 | Accumulateurs Fixes | ELECTROCHEMICAL GENERATOR WITH NEGATIVE ACTIVE MATERIAL BASED ON ALKALI OR ALKALINOTERREAL METAL |
US4663252A (en) * | 1985-03-05 | 1987-05-05 | Saft, S.A. | Electrochemical cell with negative active material based on an alkaline or alkaline earth metal |
EP0905807A1 (en) * | 1997-09-26 | 1999-03-31 | Mitsubishi Chemical Corporation | Nonaqueous secondary battery |
WO2010043886A2 (en) * | 2008-10-14 | 2010-04-22 | Iti Scotland Limited | Lithium containing transition metal sulfide compounds |
WO2010043883A1 (en) * | 2008-10-14 | 2010-04-22 | Iti Scotland Limited | Lithium-containing transition metal sulfide compounds |
WO2010043884A2 (en) * | 2008-10-14 | 2010-04-22 | Iti Scotland Limited | Lithium containing transition metal sulfide compounds |
WO2010043886A3 (en) * | 2008-10-14 | 2010-06-10 | Iti Scotland Limited | Lithium containing transition metal sulfide compounds |
WO2010043884A3 (en) * | 2008-10-14 | 2010-06-17 | Iti Scotland Limited | Lithium containing transition metal sulfide compounds |
Also Published As
Publication number | Publication date |
---|---|
FR2493607B2 (en) | 1983-10-14 |
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