Cell with at least one inlaid lithium electrode

A battery and electrode technology, applied in organic electrolyte batteries, non-aqueous electrolyte batteries, electrode carriers/collectors, etc., can solve the problems of expensive metal mesh, increased rolling pressure and annealing process, etc.
CN1372342AInactive Publication Date: 2002-10-02VARTA MICROBATTERY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
VARTA MICROBATTERY
Publication Date
2002-10-02
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a battery having at least one lithium-intercalated electrode, the electrochemically active material of which is coated on a metallic conductor in the form of a foil, provided that a second metal or the same metal is electrochemically deposited on its surface. If there are crystallites of the metal, the crystallites increase the contact area and reduce the transition resistance to the active material. The carrier material is selected from Al, Cu, V, Ti, Cr, Fe, Ni, Co or alloys of these metals or is selected from corrosion-resistant stainless steel, and the deposited metal is selected from Cu, V, Ti, Cr, Fe, Ni , Co, Zn, Sn, In, Sb, Bi, Ag or alloys of these metals. The microcrystalline size of the electrochemical deposition material is 1-25 μm, preferably 1-10 μm, and at most 10 microcrystalline layers, preferably 1-3 microcrystalline layers are deposited on the carrier foil.
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Description

technical field

[0001] The invention relates to a battery with at least one lithium-intercalated electrode, the electrochemically active substance of which is applied to a foil-shaped metal conductor. Background technique

[0002] In a battery, the connection of the conductive electrode and the electrochemically active material plays a decisive role in the function of the battery. Purely mechanical disconnection or disconnection caused by the electrochemical structure of the inert layer is the most common cause of battery failure.

[0003] Various conductor materials are known for electrodes intercalating lithium. US-Patent 6 143 444 A1 reports the direct bonding of active materials to porous foils or webs made of aluminum or copper.

[0004] From WO 98 / 20566 conductor grids of copper or aluminum are known which are cleaned, chemically etched and then coated with an adhesive.

[0005] Document US 5 631 104 A1 discloses a conductor foil consisting of aluminum and copper, w...

Claims

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