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 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 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 H01M 13/10; for secondary cells H01M 35/32; connection of electric conductors 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 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 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 H01M 5/00)
 H01M 15/00
Means or methods for depolarisation in primary cells (by heating, moving, brushing, or cleaning electrodes 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 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 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 (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 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 (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 H01M 21/14, fuel cells or batteries 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 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 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 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 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 H02J 7/00)
 H01M 45/06
·  Measuring, testing, or indicating state of accumulators, e.g. level or density of the electrolyte (measuring electric values G01R, liquid level meters G01F; measuring of density G01N)
 H01M 47/00
Regeneration of accumulators; Working-up waste products of accumulators