Bipolar battery and assembly method
This patent describes a method of making a multicell electric storage battery having a container including a cover. It comprises a plurality of wall defining a plurality of individual cell compartments, one of the walls being an intercell partition separating one cell compartment from the next and having a section which is thicker than the remainder of the partition and adapted to receive intercell connector means therein, a galvanic cell element in each of the compartments comprising a stack of positive and negative polarity plates alternately interleaved one with the other and separated one from the other by an electrolyte permeable separator, an opening through the section in the partition providing a passage between adjacent cell compartments for electrically coupling the cell elements in the adjacent compartments, a mouth at each end of the opening each confronting one of the adjacent compartments, and intercell connector means electrically series connecting adjacent the cell elements together through the opening and comprising a plurality of electrically conductive links each joining a pair of substantially coplanar, opposite polarity plates into a bipolar electrode in which a positive polarity plate of a first cell element in one cell compartment is connected directly to a negative polarity plate in a second cell element in an adjacent cell compartment. It also comprises positioning barrier means between adjacent the electrodes in each the stack, the barrier means lying substantially contiguous with the mouths so as to define a region therebetween for receiving and retaining sealant injected thereinto; stacking the bipolar electrodes in the container so to form the cell elements in the compartments and such that the link for each electrode is substantially aligned in the opening with other links from other electrodes.
- Assignee:
- General Motors Corp., Detroit, MI (United States)
- Patent Number(s):
- US 5106708; A
- Application Number:
- PPN: US 7-580977
- OSTI ID:
- 5141200
- Resource Relation:
- Patent File Date: 12 Sep 1990
- Country of Publication:
- United States
- Language:
- English
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