|  | 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 |
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL INTO ELECTRICAL ENERGY (electrochemical processes or apparatus in general Fulltext... Hierarchy... Expanded...C25; semiconductor or other solid state devices for converting light or heat into electrical energy Fulltext... Hierarchy... Expanded...H01L, e.g. Fulltext... Hierarchy... Expanded...H01L 31/00, Fulltext... Hierarchy... Expanded...H01L 35/00, Fulltext... Hierarchy... Expanded...H01L 37/00) [2]

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

|  | H01M 2/00 |
Constructional details, or processes of manufacture, of the non-active parts [2]

|  | H01M 2/02 |
· | Cases, jackets, or wrappings (manufacture of accumulator cases from vulcanised rubber Fulltext... Hierarchy... Expanded...B29H 7/12) [2]

|  | H01M 2/04 |
· · | Lids or covers [2]

|  | H01M 2/06 |
· · | Arrangements for introducing electric connectors into or through cases [2]

|  | H01M 2/08 |
· · | Sealing materials [2]

|  | H01M 2/10 |
· | Mountings; Suspension devices; Shock absorbers; Transport or carrying devices; Holders (structural combination of accumulators with charging apparatus Fulltext... Hierarchy... Expanded...H01M 10/46) [2]

|  | H01M 2/12 |
· | Vent plugs or other mechanical arrangements for facilitating escape of gases [2]

|  | H01M 2/14 |
· | Separators; Membranes; Diaphragms; Spacing elements [2]

|  | H01M 2/16 |
· · | characterised by the material [2]

|  | H01M 2/18 |
· · | characterised by the shape [2]

|  | H01M 2/20 |
· | Current-conducting connections for cells [2]

|  | H01M 2/22 |
· · | Fixed connections, i.e. not intended for disconnection [2]

|  | H01M 2/24 |
· · · | Intercell connections through partitions, e.g. in a battery case [2]

|  | H01M 2/26 |
· · · | Electrode connections [2]

|  | H01M 2/28 |
· · · · | for lead-acid accumulators [2]

|  | H01M 2/30 |
· · | Terminals [2]

|  | H01M 2/32 |
· · | Methods or arrangements for affording protection against corrosion; Selection of materials therefor [2]

|  | H01M 2/34 |
· · | with provision for preventing undesired use or discharge [2]

|  | H01M 2/36 |
· | Arrangements for filling, topping-up or emptying cases with or of liquid, e.g. for filling with electrolytes, for washing-out [2]

|  | H01M 2/38 |
· | Arrangements for moving electrolytes [2]

|  | H01M 2/40 |
· · | with external circulating path (Fulltext... Hierarchy... Expanded...H01M 8/04 takes precedence) [2]

|  | H01M 4/00 |
Electrodes (electrodes for electrolytic processes Fulltext... Hierarchy... Expanded...C25) [2]

|  | H01M 4/00 |
Note(s) When classifying electrodes of hybrid cells, the individual half-cells of the hybrid cell are considered separately, e.g. an electrode in the primary half of a primary/fuel type hybrid cell is considered to be a primary-cell electrode covered by Fulltext... Hierarchy... Expanded...H01M 4/06. [2]

|  | H01M 4/02 |
· | Electrodes composed of, or comprising, active material [2]

|  | H01M 4/04 |
· · | Processes of manufacture in general [2]

|  | H01M 4/06 |
· · | Electrodes for primary cells [2]

|  | H01M 4/08 |
· · · | Processes of manufacture [2]

|  | H01M 4/10 |
· · · · | of pressed electrodes with central core, i.e. dollies [2]

|  | H01M 4/12 |
· · · · | of consumable metal or alloy electrodes (use of alloy compositions as active materials Fulltext... Hierarchy... Expanded...H01M 4/38) [2]

|  | H01M 4/14 |
· · | Electrodes for lead-acid accumulators [2]

|  | H01M 4/16 |
· · · | Processes of manufacture [2]

|  | H01M 4/18 |
· · · · | of Plante electrodes [2]

|  | H01M 4/20 |
· · · · | of pasted electrodes [2]

|  | H01M 4/21 |
· · · · · | Drying of pasted electrodes [2]

|  | H01M 4/22 |
· · · · | Forming of electrodes [2]

|  | H01M 4/23 |
· · · · · | Drying or preserving electrodes after forming [2]

|  | H01M 4/24 |
· · | Electrodes for alkaline accumulators [2]

|  | H01M 4/26 |
· · · | Processes of manufacture [2]

|  | H01M 4/28 |
· · · · | Precipitating active material on the carrier [2]

|  | H01M 4/29 |
· · · · · | by electrochemical methods [2]

|  | H01M 4/30 |
· · · · | Pressing [2]

|  | H01M 4/32 |
· · · | Nickel oxide or hydroxide electrodes [2]

|  | H01M 4/34 |
· · · | Silver oxide or hydroxide electrodes [2]

|  | H01M 4/36 |
· · | Selection of substances as active materials, active masses, active liquids [2]

|  | H01M 4/38 |
· · · | of elements or alloys [2]

|  | H01M 4/40 |
· · · · | Alloys based on alkali metals [2]

|  | H01M 4/42 |
· · · · | Alloys based on zinc [2]

|  | H01M 4/44 |
· · · · | Alloys based on cadmium [2]

|  | H01M 4/46 |
· · · · | Alloys based on magnesium or aluminium [2]

|  | H01M 4/48 |
· · · | of inorganic oxides or hydroxides [2]

|  | H01M 4/50 |
· · · · | of manganese [2]

|  | H01M 4/52 |
· · · · | of nickel, cobalt, or iron [2]

|  | H01M 4/54 |
· · · · | of silver [2]

|  | H01M 4/56 |
· · · · | of lead [2]

|  | H01M 4/57 |
· · · · · | of "Grey lead", i.e. powders containing lead and lead oxide [2]

|  | H01M 4/58 |
· · · | of inorganic compounds other than oxides or hydroxides [2]

|  | H01M 4/60 |
· · · | of organic compounds [2]

|  | H01M 4/62 |
· · | Selection of inactive substances as ingredients for active masses, e.g. binders, fillers [2]

|  | H01M 4/64 |
· · | Carriers or collectors [2]

|  | H01M 4/66 |
· · · | Selection of materials [2]

|  | H01M 4/68 |
· · · · | for use in lead-acid accumulators [2]

|  | H01M 4/70 |
· · · | characterised by shape or form [2]

|  | H01M 4/72 |
· · · · | Grids [2]

|  | H01M 4/73 |
· · · · · | for lead-acid accumulators, e.g. frame plates [2]

|  | H01M 4/74 |
· · · · · | Meshes or woven material; Expanded metal [2]

|  | H01M 4/75 |
· · · · | Wires, rods, or strips [2]

|  | H01M 4/76 |
· · · · | Containers for holding the active material, e.g. tubes, capsules [2]

|  | H01M 4/78 |
· · · · | Shapes other than plane or cylindrical, e.g. helical [2]

|  | H01M 4/80 |
· · · · | Porous plates, e.g. sintered carriers [2]

|  | H01M 4/82 |
· · · | Multi-step processes for manufacturing carriers for lead-acid accumulators (single-step processes, see the relevant sub-classes, e.g. Fulltext... Hierarchy... Expanded...B21D, Fulltext... Hierarchy... Expanded...B22D) [2]

|  | H01M 4/84 |
· · · · | involving casting [2]

|  | H01M 4/86 |
· | Inert electrodes with catalytic activity, e.g. for fuel cells [2]

|  | H01M 4/88 |
· · | Processes of manufacture [2]

|  | H01M 4/90 |
· · | Selection of catalytic material [2]

|  | H01M 4/92 |
· · · | Metals of platinum group (Fulltext... Hierarchy... Expanded...H01M 4/94 takes precedence) [2]

|  | H01M 4/94 |
· · | Non-porous diffusion electrodes, e.g. palladium membranes, ion exchange membranes [2]

|  | H01M 4/96 |
· · | Carbon-based electrodes [2]

|  | H01M 4/98 |
· · | Raney-type electrodes [2]

|  | H01M 6/00 |
Primary cells; Manufacture thereof [2]

|  | H01M 6/00 |
Note(s) Primary cells are electrochemical generators in which the cell energy is present in chemical form and is not regenerated. [2]

|  | H01M 6/02 |
· | Details (of non-active parts Fulltext... Hierarchy... Expanded...H01M 2/00, of electrodes Fulltext... Hierarchy... Expanded...H01M 4/00) [2]

|  | H01M 6/04 |
· | Cells with aqueous electrolyte [2]

|  | H01M 6/06 |
· · | Dry cells, i.e. cells wherein the electrolyte is rendered non-fluid [2]

|  | H01M 6/08 |
· · · | with cup-shaped electrodes [2]

|  | H01M 6/10 |
· · · | with wound or folded electrodes [2]

|  | H01M 6/12 |
· · · | with flat electrodes [2]

|  | H01M 6/14 |
· | Cells with non-aqueous electrolyte [2]

|  | H01M 6/16 |
· · | with organic electrolyte (Fulltext... Hierarchy... Expanded...H01M 6/18 takes precedence) [2]

|  | H01M 6/18 |
· · | with solid electrolyte [2]

|  | H01M 6/20 |
· · · | working at high temperature (deferred-action thermal cells Fulltext... Hierarchy... Expanded...H01M 6/36) [2]

|  | H01M 6/22 |
· | Immobilising of electrolyte [2]

|  | H01M 6/24 |
· | Cells comprising two different electrolytes [2]

|  | H01M 6/26 |
· | Cells without oxidising active material, e.g. Volta cells [2]

|  | H01M 6/28 |
· | Standard cells, e.g. Weston cells [2]

|  | H01M 6/30 |
· | Deferred-action cells [2]

|  | H01M 6/32 |
· · | activated through external addition of electrolyte or of electrolyte components [2]

|  | H01M 6/34 |
· · · | Immersion cells, e.g. sea-water cells [2]

|  | H01M 6/36 |
· · | containing electrolyte and made operational by physical means, e.g. thermal cells (thermoelectric solid state devices Fulltext... Hierarchy... Expanded...H01L 35/00, Fulltext... Hierarchy... Expanded...H01L 37/00) [2]

|  | H01M 6/38 |
· · · | by mechanical means [2]

|  | H01M 6/40 |
· | Printed batteries [2]

|  | H01M 6/42 |
· | Grouping of primary cells into batteries (Fulltext... Hierarchy... Expanded...H01M 6/40 takes precedence) [2]

|  | H01M 6/44 |
· · | of tubular or cup-shaped cells [2]

|  | H01M 6/46 |
· · | of flat cells [2]

|  | H01M 6/48 |
· · · | with bipolar electrodes [2]

|  | H01M 6/50 |
· | Methodes or arrangements for servicing or maintenance, e.g. maintaining operating temperature [2]

|  | H01M 6/52 |
· | Reclaiming serviceable parts of waste cells or batteries [2]

|  | H01M 8/00 |
Fuel cells; Manufacture thereof [2]

|  | H01M 8/00 |
Note(s) Fuel cells are electrochemical generators wherein the reactants are supplied from outside. [2]

|  | H01M 8/02 |
· | Details (of non-active parts Fulltext... Hierarchy... Expanded...H01M 2/00, of electrodes Fulltext... Hierarchy... Expanded...H01M 4/00) [2]

|  | H01M 8/04 |
· | Auxiliary arrangements or processes, e.g. for control of pressure, for circulation of fluids [2]

|  | H01M 8/06 |
· | Combination of fuel cell with means for production of reactants or for treatment of residues (regenerative fuel cells Fulltext... Hierarchy... Expanded...H01M 8/18; production of reactants per se, see Sections B or C) [2]

|  | H01M 8/08 |
· | Fuel cells with aqueous electrolytes [2]

|  | H01M 8/10 |
· | Fuel cells with solid electrolytes [2]

|  | H01M 8/12 |
· · | operating at high temperature, e.g. with stabilised ZrO2 electrolyte [2]

|  | H01M 8/14 |
· | Fuel cells witz fused electrolytes [2]

|  | H01M 8/16 |
· | Biochemical fuel cells, i.e. cells in which micro-organisms function as catalysts [2]

|  | H01M 8/18 |
· | Regenerative fuel cells [2]

|  | H01M 8/20 |
· | Indirect fuel cells, e.g. redox cells (Fulltext... Hierarchy... Expanded...H01M 8/18 takes precedence) [2]

|  | H01M 8/22 |
· | Fuel cells in which the fuel is based on materials comprising carbon or oxygen or hydrogen and other elements; Fuel cells in which the fuel is based on materials comprising only elements other than carbon, oxygen, or hydrogen [2]

|  | H01M 8/24 |
· | Grouping of fuel cells into batteries, e.g. modules [2]

|  | H01M 10/00 |
Secondary cells; Manufacture thereof [2]

|  | H01M 10/00 |
Note(s) Secondary cells are accumulators receiving and supplying electrical energy by means of reversible electrochemical reactions. [2]

|  | H01M 10/02 |
· | Details (of non-active parts Fulltext... Hierarchy... Expanded...H01M 2/00, of electrodes Fulltext... Hierarchy... Expanded...H01M 4/00) [2]

|  | H01M 10/04 |
· | Construction or manufacture in general (Fulltext... Hierarchy... Expanded...H01M 10/12, Fulltext... Hierarchy... Expanded...H01M 10/28, Fulltext... Hierarchy... Expanded...H01M 10/38 take precedence) [2]

|  | H01M 10/06 |
· | Lead-acid accumulators (semi-lead accumulators Fulltext... Hierarchy... Expanded...H01M 10/20) [2]

|  | H01M 10/08 |
· · | Selection of materials as electrolytes [2]

|  | H01M 10/10 |
· · · | Immobilising of electrolyte [2]

|  | H01M 10/12 |
· · | Construction or manufacture [2]

|  | H01M 10/14 |
· · · | Assembling a group of electrodes or separators [2]

|  | H01M 10/16 |
· · · | Suspending or supporting electrodes or groups of electrodes in the case [2]

|  | H01M 10/18 |
· · | with bipolar electrodes [2]

|  | H01M 10/20 |
· | Semi-lead accumulators, i.e. accumulators in which only one electrode contains lead [2]

|  | H01M 10/22 |
· · | Selection of materials as electrolytes [2]

|  | H01M 10/24 |
· | Alkaline accumulators [2]

|  | H01M 10/26 |
· · | Selection of materials as electrolytes [2]

|  | H01M 10/28 |
· · | Construction or manufacture [2]

|  | H01M 10/30 |
· · | Nickel accumulators (Fulltext... Hierarchy... Expanded...H01M 10/34 takes precedence) [2]

|  | H01M 10/32 |
· · | Silver accumulators (Fulltext... Hierarchy... Expanded...H01M 10/34 takes precedence) [2]

|  | H01M 10/34 |
· | Gastight accumulators [2]

|  | H01M 10/36 |
· | Accumulators not provided for in groups Fulltext... Hierarchy... Expanded...Fulltext... Hierarchy... Expanded...H01M 10/06-H01M 10/34 [2]

|  | H01M 10/38 |
· · | Construction or manufacture [2]

|  | H01M 10/39 |
· · | working at high temperature [2]

|  | H01M 10/40 |
· · | with organic electrolytes [2]

|  | H01M 10/42 |
· | Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells [2]

|  | H01M 10/44 |
· · | Methods for charging or discharging (circuits for charging Fulltext... Hierarchy... Expanded...H02J 7/00) [2]

|  | H01M 10/46 |
· · | Accumulators structurally combined with charging apparatus (circuits for charging Fulltext... Hierarchy... Expanded...H02J 7/00) [2]

|  | H01M 10/48 |
· · | Accumulators combined with arrangements for measuring, testing, or indicating condition, e.g. level or density of the electrolyte (indicating or measuring level of liquid in general Fulltext... Hierarchy... Expanded...G01F 23/00; measuring density Fulltext... Hierarchy... Expanded...G01N, e.g. Fulltext... Hierarchy... Expanded...G01N 9/00; measuring electric variables Fulltext... Hierarchy... Expanded...G01R) [2]

|  | H01M 10/50 |
· · | Heating or cooling or regulating temperature (control of temperature per se Fulltext... Hierarchy... Expanded...G05D 23/00) [2]

|  | H01M 10/52 |
· · | Removing gases inside the secondary cell, e.g. by absorption (vent plugs or other mechanical arrangements for facilitating escape of gases Fulltext... Hierarchy... Expanded...H01M 2/12) [2]

|  | H01M 10/54 |
· | Reclaiming serviceable parts of waste accumulators [2]

|  | H01M 12/00 |
Hybrid cells; Manufacture thereof [2]

|  | H01M 12/00 |
Note(s) Hybrid cells are electrochemical generators having two different types of half-cells, the half-cell being an electrode-electrolyte combination of either a primary, a secondary, or a fuel cell. [2]

|  | H01M 12/02 |
· | Details (of non-active parts Fulltext... Hierarchy... Expanded...H01M 2/00, of electrodes Fulltext... Hierarchy... Expanded...H01M 4/00) [2]

|  | H01M 12/04 |
· | composed of a half-cell of the fuel-cell type and of a half-cell of the primary-cell type (methods or arrangements for servicing or maintenance Fulltext... Hierarchy... Expanded...H01M 6/50) [2]

|  | H01M 12/06 |
· · | with one metallic and one gaseous electrode [2]

|  | H01M 12/08 |
· | composed of a half-cell of a fuel-cell type and a half-cell of the secondary-cell type (methods or arrangements for servicing or maintenance, e.g. for charging, Fulltext... Hierarchy... Expanded...H01M 10/42) [2]

|  | H01M 14/00 |
Electrochemical current or voltage generators not provided for in groups Fulltext... Hierarchy... Expanded...Fulltext... Hierarchy... Expanded...H01M 6/00-H01M 12/00 [2]

|  | H01M 16/00 |
Structural combinations of different types of electrochemical generators [2]