Battery components comprising fibers
Battery components are generally provided. In some embodiments, the battery components can be used as pasting paper and/or capacitance layers for batteries, such as lead acid batteries. The battery components described herein may comprise a plurality of fibers. The battery component may include, in some embodiments, a plurality of fibers and, optionally, one or more additives such as conductive carbon and/or activated carbon. In certain embodiments, the plurality of fibers include relatively coarse glass fibers (e.g., having an average diameter of greater than or equal to 2 microns), relatively fine glass fibers (e.g., having an average diameter of less than 2 microns), and/or fibrillated fibers. In some instances, such fibers may be present in amounts such that the battery component has a particular surface area, mean pore size, and/or dry tensile strength.
1. A pasting paper, comprising:
a plurality of fine glass fibers having an average fiber diameter of less than 2 microns, wherein the plurality of fine glass fibers are present in an amount greater than or equal to 30 wt % and less than or equal to 60 wt % versus the total weight of the pasting paper;
a plurality of coarse glass fibers having an average fiber diameter of greater than or equal to 2 microns, wherein the plurality of coarse glass fibers are present in an amount greater than or equal to 30 wt % and less than or equal to 60 wt % versus the total weight of the pasting paper;
a plurality of fibrillated fibers present in an amount greater than or equal to 1 wt % and less than or equal to 15 wt % versus the total weight of the pasting paper;
wherein the pasting paper has:
an internal resistance of greater than or equal to 0 ohm cm 2 and less than or equal to 1 ohm cm 2 , and
a dry tensile strength of greater than or equal to 0.1 pounds per inch and less than or equal to 15 pounds per inch, and
wherein:
the pasting paper comprises activated carbon and conductive carbon, wherein a ratio of activated carbon to conductive carbon present in the pasting paper is greater than or equal to 90:10 and less than or equal to 94:6; and/or
the pasting paper comprises a hydrogen suppressant in an amount of greater than or equal to 0.1 wt % and less than or equal to 2 wt % versus the total weight of the pasting paper.
2. A battery plate, comprising:
a lead grid; and
a battery component as in claim 1 .
3. A pasting paper as in claim 1 , wherein activated carbon and/or conductive carbon is deposited on the pasting paper.
4. A pasting paper as in claim 1 , wherein the activated carbon and/or conductive carbon is present within the pasting paper.
5. A pasting paper as in claim 1 , wherein the total weight of fine glass fibers and coarse glass fibers is less than or equal to 98 wt % versus the total weight of the pasting paper.
6. A pasting paper as in claim 1 , wherein the plurality of fine glass fibers have an average fiber diameter of less than or equal to 1 micron.
7. A pasting paper as in claim 1 , wherein the plurality of coarse glass fibers have an average fiber diameter of greater than 5 microns.
8. A pasting paper as in claim 1 , wherein the plurality of fibrillated fibers have an average length of less than or equal to 25 mm.
9. A pasting paper as in claim 1 , wherein the plurality of fibrillated fibers have a Canadian Standard Freeness (CSF) of greater than or equal to 20 CSF and less than or equal to 650 CSF.
10. A pasting paper as in claim 1 , wherein the plurality of fibrillated fibers comprise cellulose-based fibers, acrylics, liquid crystalline polymers, polyoxazoles, aramids, p-aramids, polyethylenes, polyesters, polyamides, cotton, polyolefins, and/or olefins.
11. A pasting paper as in claim 1 , further comprising a resin.
12. A pasting paper as in claim 11 , wherein the resin has a contact angle of greater than 90 degrees, according to standard ASTM D5946 (2009).
13. A pasting paper as in claim 1 , wherein the pasting paper has a Cobb parameter of greater than or equal to 50 gsm.
14. A pasting paper as in claim 1 , wherein the pasting paper has a basis weight of greater than or equal to 10 g/m 2 and less than or equal to 200 g/m 2 .
15. A pasting paper as in claim 1 , wherein the pasting paper has an average thickness of greater than or equal to 0.1 mm and less than or equal to 0.6 mm.
16. A pasting paper as in claim 1 , wherein the pasting paper has a specific surface area of greater than or equal to 0.2 m 2 /g and less than or equal to 5 m 2 /g.
17. A pasting paper as in claim 1 , wherein the pasting paper has a maximum pore size greater than or equal to 5 microns and less than or equal to 100 microns.
18. A pasting paper as in claim 1 , wherein the pasting paper has a mean pore size of greater than or equal to 0.1 microns and less than or equal to 15 microns.
19. A lead acid battery comprising,
a negative plate;
a positive plate; and
a pasting paper as in claim 1 disposed between the negative and positive plates.