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US 11,387,511 B1Granted
Electric cell potting compound and method of making
AssigneeH.B. Fuller Company
InventorAlbert M. Giorgini
Life of this patent
Estimating the term…
Abstract
A battery module comprising an electric cell and a potting compound associated with the electric cell. The potting compound is formed of a flame retardant component; a first component having an isocyanate reactive compound and water; and a second component having an isocyanate compound. The potting compound is a foam.
Claims26
A method of potting an electric cell, the method comprising:
- positioning a liquid potting composition in a space defined between a side of a first electric cell positioned in a container and at least one of a side of a second electric cell and a side of the container;
- allowing the liquid potting composition to flow to a substantially level height in the container;
- and
- allowing the potting composition to harden to form a potting compound,
- the liquid potting composition comprising:
- an isocyanate reactive compound;
- a blowing agent;
- an isocyanate compound;
- and
- a liquid flame retardant component in an amount greater than 10% by weight.
7 more elements
A method of potting an electric cell, the method comprising:
- positioning a liquid potting composition in an enclosed space defined by a wall of a case, the case containing at least one electric cell,
- the liquid potting composition comprising:
- a first component comprising an isocyanate reactive compound and a blowing agent;
- a second component comprising an isocyanate compound;
- and
- at least one of the first and second component including a flame retardant component in an amount greater than 10% by weight based on the total weight of the liquid potting composition,
- wherein at least one of (a) and (b) are exhibited:
- (a) the first component has a viscosity from greater than one cP to less than 1500 cP at 25° C., and
- (b) the second component has a viscosity from greater than one cP to less than 1000 cP at 25° C.
6 more elements
A method of potting an electric cell, the method comprising:
- positioning a liquid potting composition in a space defined between a side of a first electric cell positioned in a container and at least one of a side of a second electric cell and a side of the container,
- the liquid potting composition having sufficient flowability such that the liquid potting composition settles at a substantially level height in the space before forming a polyurethane foam potting compound exhibiting at least a V2 level flame resistance as measured by the UL 94 Test for Flammability of Plastics using a sample having a width of 13 mm and a thickness of 9.5 mm.
Dependencies are inferred from the claim text.