|  | H |
SECTION H — ELECTRICITY

|  | H01 |
BASIC ELECTRIC ELEMENTS

|  | H01 |
Note(s) Processes involving only a single technical art, e.g. drying, coating, for which provision exists elsewhere are classified in the relevant class for that art.

|  | H01M |
BATTERIES; ACCUMULATORS (electrochemical processes or apparatus in general Fulltext... Hierarchy... Expanded...B01K)

|  | H01M |
Note(s) This sub-class deals with galvanic primary or secondary cells or batteries, and fuel cells or batteries.

|  | H01M 1/00 - H01M 9/00 |
Details of primary or secondary cells or batteries

|  | H01M 1/00 |
Constructional details or processes of manufacture of the non-active parts

|  | H01M 1/02 |
· | Cases; Lids or covers; Lead-ins; Selection of sealing materials therefor

|  | H01M 1/04 |
· | Mountings; Suspension devices; Shock absorbers; Transport or carrying devices

|  | H01M 1/06 |
· | Vent plugs or other arrangements for facilitating escape of gases

|  | H01M 1/08 |
· | Methods or devices for converting or absorbing gases evolved in the interior or the cases (separation of gases by absorption per se Fulltext... Hierarchy... Expanded...B01D 53/14)

|  | H01M 3/00 |
Separators; Diaphragms

|  | H01M 3/02 |
· | characterised by the material

|  | H01M 3/04 |
· | characterised by the shape

|  | H01M 5/00 |
Battery or cell connections or terminals (electrode connections for primary cells Fulltext... Hierarchy... Expanded...H01M 13/10; for secondary cells Fulltext... Hierarchy... Expanded...H01M 35/32; connection of electric conductors Fulltext... Hierarchy... Expanded...H01R)

|  | H01M 5/02 |
· | Methods or arrangements for affording protection against corrosion; Selection of materials therefor

|  | H01M 5/04 |
· | with provision for preventing undesired use or discharge

|  | H01M 7/00 |
Arrangements for filling, topping-up, or emptying cases with or of liquid, e.g. for filling with electrolytes, for washing-out

|  | H01M 7/02 |
· | with external circulating path

|  | H01M 9/00 |
Rendering electrolytes in primary or secondary cells or batteries non-fluid or less fluid (solidifying liquids in general Fulltext... Hierarchy... Expanded...B01J 2/24)

|  | H01M 9/02 |
· | by absorption

|  | H01M 9/04 |
· | by thickening, e.g. by use of gels

|  | H01M 11/00 - H01M 33/00 |
Primary cells or batteries

|  | H01M 11/00 |
Selection of materials as electrolytes for primary cells (selection of materials for use as electrolytes in general Fulltext... Hierarchy... Expanded...B01K 3/12)

|  | H01M 13/00 |
Electrodes for primary cells

|  | H01M 13/02 |
· | Carbon electrodes with or without sheathing, e.g. dollies

|  | H01M 13/04 |
· · | Apparatus or processes specially adapted for manufacturing

|  | H01M 13/06 |
· | Metal electrodes

|  | H01M 13/08 |
· · | Apparatus or processes specially adapted for manufacturing

|  | H01M 13/10 |
· | Electrode connections (battery or cell connections Fulltext... Hierarchy... Expanded...H01M 5/00)

|  | H01M 15/00 |
Means or methods for depolarisation in primary cells (by heating, moving, brushing, or cleaning electrodes Fulltext... Hierarchy... Expanded...H01M 31/02)

|  | H01M 15/02 |
· | using gaseous depolarisers

|  | H01M 15/04 |
· | using liquid depolarisers

|  | H01M 15/06 |
· | using solid depolarisers

|  | H01M 17/00 |
Primary cells with one electrolytic liquid

|  | H01M 17/02 |
· | with light-metal electrodes (standard cells Fulltext... Hierarchy... Expanded...H01M 17/04)

|  | H01M 17/04 |
· | Standard cells

|  | H01M 17/06 |
· · | Cells which may be de-activated after use by separating electrolyte from electrode, e.g. bichromate cells de-activated by turning-over or by raising electrode

|  | H01M 19/00 |
Primary cells with two electrolytic liquids (cells with a mixture of one electrolyte and a liquid depolariser Fulltext... Hierarchy... Expanded...H01M 17/00)

|  | H01M 21/00 |
Dry primary cells

|  | H01M 21/02 |
· | Cells with exchangeable parts

|  | H01M 21/04 |
· | Cells with electrodes shaped as plates, ribbons, or discs

|  | H01M 21/06 |
· | Cells with cup-shaped or tubular electrodes

|  | H01M 21/08 |
· | Inert cells

|  | H01M 21/10 |
· · | for activation by adding electrolytes

|  | H01M 21/12 |
· · | for activation by adding non-electrolytes, e.g. water, to form the electrolyte in the cell

|  | H01M 21/14 |
· · | for activation by heating

|  | H01M 23/00 |
Primary batteries

|  | H01M 23/02 |
· | consisting of cells with liquid electrolyte

|  | H01M 23/04 |
· | consisting of stacked-plate dry cells, e.g. anode batteries

|  | H01M 23/06 |
· | consisting of cup-shaped or tubular dry cells, e.g. for pocket lamps

|  | H01M 23/08 |
· | having bipolar electrodes common to adjacent cells

|  | H01M 23/10 |
· | with easily exchangeable cells

|  | H01M 27/00 |
Fuel cells or batteries, i.e. arrangements for continuously converting chemicals into electricity through electrochemical reactions and in which the reactants may be supplied continuously from outside

|  | H01M 27/02 |
· | Details

|  | H01M 27/04 |
· · | Electrodes; Selection of catalytic agents

|  | H01M 27/06 |
· · · | Non-porous electrodes permitting diffusion of specified gases, e.g. palladium membrane for diffusion of hydrogen

|  | H01M 27/08 |
· · · | Raney-type electrodes

|  | H01M 27/10 |
· · · | using noble-metal catalysts, e.g. using platinum (Fulltext... Hierarchy... Expanded...H01M 27/06 takes precedence)

|  | H01M 27/12 |
· · | Auxiliary appliances, e. g for control of pressure, for circulation of fluids

|  | H01M 27/14 |
· | Functional combination of fuel element with means for production of reactants or for treatment of residues (regeneration Fulltext... Hierarchy... Expanded...H01M 27/26; production of reactants in general Section B, Section C)

|  | H01M 27/16 |
· | having solid self-supporting electrolyte, e.g. using CaO in ZrO2, using glass

|  | H01M 27/18 |
· · | with the cell operating at ambient temperature

|  | H01M 27/20 |
· | using fused salt electrolytes

|  | H01M 27/22 |
· | having aqueous electrolyte operating at elevated temperature and elevated pressure, e.g. above 200 °C

|  | H01M 27/24 |
· | Biochemical fuel cells, i.e. cells in which micro-organisms function as catalysts

|  | H01M 27/26 |
· | Regenerative fuel cells

|  | H01M 27/28 |
· | Indirect fuel cells, i.e. in which at least one chemical reaction occurs before the cell functions as a fuel cell, e.g. Redox cell (Fulltext... Hierarchy... Expanded...H01M 27/26 takes precedence)

|  | H01M 27/30 |
· | in which the fuel is not based on compositions only comprising carbon and/or oxygen and/or hydrogen

|  | H01M 29/00 |
Other cells or batteries dependent on chemical processes for generating electricity (thermal cells Fulltext... Hierarchy... Expanded...H01M 21/14, fuel cells or batteries Fulltext... Hierarchy... Expanded...H01M 27/00)

|  | H01M 29/02 |
· | in which only one reactant is supplied from outside the cell, e.g. air depolarisation cell

|  | H01M 29/04 |
· · | with consumable electrodes, e.g. of zinc (depolarisation in primary cells Fulltext... Hierarchy... Expanded...H01M 15/00)

|  | H01M 31/00 |
Special methods or arrangements for operating or servicing primary cells or batteries

|  | H01M 31/02 |
· | Heating, moving, brushing, or cleaning electrodes or other parts

|  | H01M 31/04 |
· | Measuring, testing, or indicating the state of cells or batteries (measuring electric values Fulltext... Hierarchy... Expanded...G01R)

|  | H01M 33/00 |
Regenerating primary cells or batteries; Working-up waste products of primary cells or batteries

|  | H01M 35/00 - H01M 47/00 |
Secondary cells or batteries; Accumulators

|  | H01M 35/00 |
Electrodes or plates for accumulators; Apparatus or processes for the manufacture thereof

|  | H01M 35/02 |
· | characterised by the active material or carrier material

|  | H01M 35/04 |
· | characterised by shape or form

|  | H01M 35/06 |
· · | Plates with large surface and without separate active material, e.g. Planté plate

|  | H01M 35/08 |
· · | Grid or frame plates, i.e. grids or frames supporting separate active material

|  | H01M 35/10 |
· · | Wires strips, meshes, or the like supporting the active material

|  | H01M 35/12 |
· · | Tubes, capsules, trays, or other containers holding the active material

|  | H01M 35/14 |
· · · | enclosing a grid, frame, rod, or other core

|  | H01M 35/16 |
· · | Shapes other than plane or cylindrical, e.g. helical

|  | H01M 35/18 |
· | characterised by process of manufacture (performing single operations or combinations of metal-working operations, see the relevant classes for the operation or operations)

|  | H01M 35/20 |
· · | Casting of electrodes; Trimming of cast electrodes

|  | H01M 35/22 |
· · | Rolling or pressing of electrodes

|  | H01M 35/24 |
· · | Roughening of electrodes

|  | H01M 35/26 |
· · | Pasting of electrodes; Drying of pasted plates (drying after activating Fulltext... Hierarchy... Expanded...H01M 35/30)

|  | H01M 35/28 |
· · | Sintering of electrodes

|  | H01M 35/30 |
· · | Activating or forming of electrodes; Drying or preserving of electrodes after activating or forming

|  | H01M 35/32 |
· | Electrode connections (battery or cell connections Fulltext... Hierarchy... Expanded...H01M 5/00)

|  | H01M 37/00 |
Assembling a group of activated or formed accumulator electrodes; Relative spatial arrangements of electrodes of opposite polarity in accumulators, e.g. rolled, zig-zagged

|  | H01M 39/00 |
Lead accumulators; Construction or manufacture thereof

|  | H01M 39/02 |
· | Suspending or supporting electrodes or separators in the case

|  | H01M 39/04 |
· | Selection of materials as electrolytes

|  | H01M 39/06 |
· | with bipolar electrodes

|  | H01M 41/00 |
Semi-lead accumulators, e.g. lead-zinc; Construction or manufacture thereof

|  | H01M 41/02 |
· | Selection of materials as electrolytes

|  | H01M 43/00 |
Non-lead accumulators; Light metal accumulators, e.g. alkaline; Construction or manufacture thereof

|  | H01M 43/02 |
· | Zinc or silver accumulators

|  | H01M 43/04 |
· | Nickel, iron, cobalt, or cadmium accumulators

|  | H01M 43/06 |
· | Selection of materials as electrolytes

|  | H01M 45/00 |
Special methods or arrangements for operating or servicing accumulators

|  | H01M 45/02 |
· | Cleaning, cooling, or heating of accumulators or parts thereof

|  | H01M 45/04 |
· | Charging of accumulators; Accumulators structurally combined with charging apparatus (circuits for charging Fulltext... Hierarchy... Expanded...H02J 7/00)

|  | H01M 45/06 |
· | Measuring, testing, or indicating state of accumulators, e.g. level or density of the electrolyte (measuring electric values Fulltext... Hierarchy... Expanded...G01R, liquid level meters Fulltext... Hierarchy... Expanded...G01F; measuring of density Fulltext... Hierarchy... Expanded...G01N)

|  | H01M 47/00 |
Regeneration of accumulators; Working-up waste products of accumulators