Pasting paper made of glass fiber nonwoven comprising carbon graphite

US10084170B2 · kind B2 · utility

Assignee

• Johns Manville · US

Inventors

• Michael Ketzer · Collenberg, DE
• Gerold Albert · Zell am Harmersbach, DE
• Zhihua Guo · Ottawa Hills, US
• Souvik Nandi · Englewood, US
• Jawed Asrar · Englewood, US
• Albert G. Dietz, III · Davidson, US

Key dates

• Filing date: Sep 17, 2014
• Grant date: Sep 25, 2018
• Expiry date: Aug 18, 2035

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T29/49108
• WIPO field: Electrical machinery, apparatus, energy
• WIPO sector: Electrical engineering

Abstract

Embodiments of the invention provide an absorptive glass mat (AGM) battery having a positive electrode, a negative electrode, and a nonwoven fiber separator positioned between the electrodes. The separator includes a mixture of glass fibers having diameters between about 8 μm to 13 μm and glass fibers having diameters of at least 6 μm and a silane sizing. An acid resistant binder bonds the glass fibers to form the separator. A wetting component is applied to the separator to increase the wettability such that the separator has or exhibits an average water wick height of at least 1.0 cm after exposure to water for 10 minutes. A conductive material is disposed on at least one surface of the separator such that when the separator is positioned adjacent an electrode, the conductive material contacts the electrode. An electrical resistance of less than 100,000 ohms per square enables electron flow about mat.