1
Zafar Iqbal, Jeff Pratt, Jim Matrunich, James V Guiheen, Hongli Dai, Tim Rehg, Dave Narasinham: Nanocomposite for fuel cell bipolar plate. Hybrid Power Generation Systems, Sutherland Asbill & Brennan, June 3, 2003: US06572997 (17 worldwide citation)

An electrically conductive flow-field plate in a proton exchange membrane fuel cell comprises a composition made of a resin and a plurality of carbon nanotubular fibers having an average diameter is at least about 0.5 nm and up to about 300 nm. The carbon nanotubular fibers are present at not more t ...


2
Hongli Dai: High performance lithium or lithium ion cell. E I du Pont de Nemours and Company, March 2, 2004: US06699623 (14 worldwide citation)

Graphite sheeting having a thickness of less than 250 micrometers and in-plane conductivity of at least 100 S/cm when employed as a cathode current collector in a lithium or lithium ion cell containing a fluorinated lithium imide or methide electrolyte salt imparts high thermal resistance, excellent ...


3
Hongli Dai, Richard M Mank: Management of high-voltage lithium-polymer batteries in portable electronic devices. Apple, Park Vaughan Fleming & Dowler, Chia Hsin Suen, October 7, 2014: US08854012 (7 worldwide citation)

The disclosed embodiments provide a system that manages use of a battery corresponding to a high-voltage lithium-polymer battery in a portable electronic device. During operation, the system monitors a cycle number of the battery during use of the battery with the portable electronic device, wherein ...


4
Marc Juzkow, Aakar Patel, Jun Lui, Konstantin Tikhonov, Michael Erickson, Hashmat Haidari, Thomas Nagy, Hongli Dai: Electrochemical cells with tabs. Leyden Energy, Kilpatrick Townsend & Stockton, June 18, 2013: US08465871 (5 worldwide citation)

The present invention provides electrochemical cells and batteries having one or more electrically conductive tabs and carbon sheet current collectors, where the tabs are connected to the carbon sheet current collectors; and methods of connecting the tabs to the carbon based current collectors. In o ...


5
Stephen P Zadesky, Hongli Dai: Electronic device and charging device for electronic device. Apple, Brownstein Hyatt Farber Schreck, September 27, 2016: US09455582 (2 worldwide citation)

An electronic device. The electronic device may include a battery, and a charging system in electronic communication with the battery. The charging system may be configured to charge at least a partially-depleted battery to a threshold charge value, discontinue the charging in response to the batter ...


6
Hongli Dai, Christopher S Johnson, Huiming Wu, John David Carter: High-density precursor for manufacture of composite metal oxide cathodes for Li-ion batteries. Apple, Polsinelli PC, July 25, 2017: US09716265 (2 worldwide citation)

The disclosed embodiments relate to the manufacture of a precursor co-precipitate material for a cathode active material composition. During manufacture of the precursor co-precipitate material, an aqueous solution containing at least one of a manganese sulfate and a cobalt sulfate is formed. Next, ...


7
Hongli Dai: Carboxylic acid-based ionomer fuel cells. E I du Pont de Nemours and Company, Jane O Hamby, July 22, 2008: US07402351 (2 worldwide citation)

Conductivity of carboxylic acid membranes can be increased for use in fuel cells when the membrane comprises a Lewis base, which has, in its protonated form, a pKa greater than the pKa of the carboxylic acid groups of the membrane. When the invention is employed in direct methanol fuel cells, water ...


8
Hongli Dai, Huiming Wu, Dapeng Wang: Cathode active materials having improved particle morphologies. Apple, Polsinelli PC, September 25, 2018: US10084187 (1 worldwide citation)

Mixed-metal oxides and lithiated mixed-metal oxides are disclosed that involve compounds according to, respectively, NixMnyCozMeαOβ and Lii+γNixMnyCozMeαOβ. In these compounds, Me is selected from B, Na, Mg, Al, Si, K, Ca, Sc, Ti, V, Cr, Fe, Cu, Zn, Ga, Ge, Zr, Nb, Mo, Ru, Ag, In, and combinations t ...


9
Stephen P Zadesky, Hongli Dai: Electronic device charging system. Apple, Brownstein Hyatt Farber Schreck, December 5, 2017: US09837835 (1 worldwide citation)

An electronic device. The electronic device may include a battery, and a charging system in electronic communication with the battery. The charging system may be configured to charge at least a partially-depleted battery to a threshold charge value, discontinue the charging in response to the batter ...


10
Hongli Dai, Richard M Mank: Management of high-voltage lithium-polymer batteries in portable electronic devices. Apple, Blank Rome, September 20, 2016: US09450443 (1 worldwide citation)

The disclosed embodiments provide a system that manages use of a battery corresponding to a high-voltage lithium-polymer battery in a portable electronic device. During operation, the system monitors a cycle number of the battery during use of the battery with the portable electronic device, wherein ...