ACCUMULATEUR AU LITHIUM FONCTIONNANT ENTRE 1,8 VOLTS ET 4,3 VOLTS
    2.
    发明公开
    ACCUMULATEUR AU LITHIUM FONCTIONNANT ENTRE 1,8 VOLTS ET 4,3 VOLTS 审中-公开
    1.8至4.3 VOLT VOLT动式锂电池

    公开(公告)号:EP0991592A1

    公开(公告)日:2000-04-12

    申请号:EP99913405.9

    申请日:1999-04-14

    IPC分类号: C01G45/00 H01M4/50

    摘要: The invention concerns a lithium battery operating between 1.8 volts and 4.3 volts and comprising a negative electrode, an electrolyte and a positive electrode characterised in that said positive electrode comprises as active material, and before it has been subjected to a particular charging or discharging operation, a manganese oxide containing lithium or extra lithium having a spine structure obtainable by a preparation method comprising the following three steps performed successively or simultaneously: preparing a lithium alkoxide solution by dissolving metal lithium in the corresponding alcohol, said alcohol being selected among the alcohols derived from linear or branched alkanes containing at least 3 carbon atoms, the alcohols derived from unsaturated aliphatic hydrocarbons, and their mixtures; adding a manganese oxide powder to said lithium alkoxide solution to obtain a dispersion; controlled reduction of said manganese oxide by said alkoxide until a manganese oxide containing lithium or extra lithium having a stoichiometry Li: Metal is obtained. Said method further comprises the following steps: evaporating the residual alcohol; washing the resulting powder; drying the powder; optionally, an additional step of heat treatment after drying.

    DISPOSITIF ELECTRONIQUE SECURISE
    6.
    发明公开
    DISPOSITIF ELECTRONIQUE SECURISE 有权
    安全的电子设备

    公开(公告)号:EP1493126A2

    公开(公告)日:2005-01-05

    申请号:EP03727581.5

    申请日:2003-03-11

    IPC分类号: G06K19/073

    摘要: The invention relates to a secure electronic device comprising: at least one electronic circuit (10) containing information that is to be protected; an energy source (11); at least one sensor (12, 13, 14) for measuring a physical variable and for providing a value which is representative of said variable; means (15, 16, 17) for comparing each value to at least one predetermined threshold (ref1, ref2, ref3) delivering result signals; a device (20) for protecting information, comprising means for controlling the destruction of at least one part of the circuit by pyrotechnical means (27); a logical, decision-taking device (21) which can activate the protection device in the light of the result signals; igniting means (31) for activating a local or total pyrotechnic micro-charge (30), with the aid of the electrical energy stocked in the energy source, in a permanent manner.

    DISPOSITIF ELECTRONIQUE SECURISE
    9.
    发明授权
    DISPOSITIF ELECTRONIQUE SECURISE 有权
    安全的电子设备

    公开(公告)号:EP1493126B1

    公开(公告)日:2006-10-25

    申请号:EP03727581.5

    申请日:2003-03-11

    IPC分类号: G06K19/073

    摘要: The invention relates to a secure electronic device comprising: at least one electronic circuit (10) containing information that is to be protected; an energy source (11); at least one sensor (12, 13, 14) for measuring a physical variable and for providing a value which is representative of said variable; means (15, 16, 17) for comparing each value to at least one predetermined threshold (ref1, ref2, ref3) delivering result signals; a device (20) for protecting information, comprising means for controlling the destruction of at least one part of the circuit by pyrotechnical means (27); a logical, decision-taking device (21) which can activate the protection device in the light of the result signals; igniting means (31) for activating a local or total pyrotechnic micro-charge (30), with the aid of the electrical energy stocked in the energy source, in a permanent manner.

    MODULE DE BASE DE PILE A COMBUSTIBLE MINIATURE AVEC DES MICRO-VOLUMES TRAVERSES PAR UN DES DEUX REACTANTS
    10.
    发明公开
    MODULE DE BASE DE PILE A COMBUSTIBLE MINIATURE AVEC DES MICRO-VOLUMES TRAVERSES PAR UN DES DEUX REACTANTS 审中-公开
    与微体积由两个响应基金微型燃料基础模块交叉

    公开(公告)号:EP1532703A2

    公开(公告)日:2005-05-25

    申请号:EP03755183.5

    申请日:2003-05-22

    IPC分类号: H01M8/00

    摘要: The invention relates to a miniature fuel cell base module comprising micro-volumes which are traversed by one of two reactants. The inventive base module comprises a large functional surface for a relatively small overall surface. Said module consists mainly of numerous micro-volumes (10, 110) which are positioned inside a closed space between lower (1), upper (2) and lateral (3) sides. The wall of each micro-volume is covered with a layer which forms the electrodes/membrane base element. A first reactant is circulated inside the micro-volumes (10, 110) while a second reactant is circulated between the micro-volumes (10, 110). The space between the micro-volumes (10, 110) can optionally be filled with a porous material in order to make the assembly rigid. The invention is suitable for small fuel cells.