Technical Briefs, Design Engineering News

Keyword: Battery cell chemistry

Briefs: Transportation

Safer, Longer-Lasting, Solid-State Batteries

Solid-state batteries offer a higher level of safety and potentially longer life than lithium-ion batteries.

Briefs: Electronics & Computers

Electrolyte Boost Improves Performance of Aqueous Dual-Ion Batteries

New cell chemistry utilizes less costly and more abundant materials than lithium-ion batteries.

Briefs: Transportation

Chemical Mixture Widens the Temperature Range for Electric Car Batteries

A combination of additives shows promise for boosting battery performance in very cold or hot weather.

Briefs: Materials

Graphene Oxide Nanosheets for Lithium-Metal Batteries

Lithium-metal batteries — which can hold up to ten times more charge than lithium-ion batteries — haven't been commercialized because of a fatal flaw: as the batteries charge and...

Briefs: Energy

Environmentally Friendly, Rechargeable Proton Battery

A working, rechargeable proton battery was developed that could store more energy than currently available lithium-ion batteries. Potential applications include household storage of...

Q&A: Imaging

Q&A: Brookhaven's Dr. Yimei Zhu Observes How Lithium Moves Inside Batteries

Researchers at Brookhaven National Laboratory have observed how lithium moves inside individual nanoparticles that make up batteries. The finding could help...

Briefs: Materials

Nonaqueous Redox Flow Battery

Researchers have created a material that consists of carefully structured molecules designed to be particularly electrochemically stable in order to prevent the battery from losing energy to unwanted reactions....

Briefs: Physical Sciences

Thermal Properties of Microstrain Gauges Used for Protection of Lithium-Ion Cells of Different Designs

The purpose of this innovation is to use microstrain gauges to monitor minute changes in temperature along with material properties of the metal cans and pouches used in the construction of lithium-ion cells. The sensitivity of the microstrain...

Briefs: Electronics & Computers

Additive for Low-Temperature Operation of Li-(CF)n Cells

Some progress has been reported in continuing research on the use of anion-receptor compounds as electrolyte additives to increase the sustainable rates of discharge and, hence, the...

Briefs: Electronics & Computers

Li/CFₓ Cells Optimized for Low-Temperature Operation

Several prior developments are combined.

Some developments reported in prior NASA Tech Briefs articles on primary electrochemical power cells containing lithium anodes and fluorinated carbonaceous (CF_x) cathodes have been combined to yield a product line of cells optimized...

Briefs: Materials

Carbon Nanotubes as Anodes in Rechargeable Lithium-Ion Cells

Carbon nanotubes (also known as "bucky tubes") have shown promise for use as anode materials in rechargeable lithium-ion power cells. In comparison with graphite and other forms of carbon used under identical conditions, bucky tubes exhibit greater specific discharge capacity and...

Briefs: Physical Sciences

Lithium-Based Primary Cells for Low-Temperature Operation

A report describes an experimental study of the low-temperature electrical characteristics of commercial Li/MnO₂, Li/CF_x, Li/SO₂, Li/SOCl₂, and Li/BCX primary electrochemical cells. These high-energy-density cells are under consideration for use...

Briefs: Electronics & Computers

LaNi₅₋ₓMₓ Alloys for Ni/Metal Hydride Electrochemical Cells

Studies of physical and chemical effects in the hydride-forming electrodes of rechargeable nickel/metal hydride electrochemical cells have yielded results that now guide...

Briefs: Electronics & Computers

Prolonging the Lives of Rechargeable Lithium-Ion Cells

Several modifications of the design and operation of lithium-ion rechargeable electrochemical cells have been proposed to prolong the cycle lives of the cells. As explained below, overdischarge can result in dissolution of a metal current collector in the anode of a cell, with consequent...

Briefs: Materials

LaNi₅₋ₓGeₓ Electrodes for Ni/MH Electrochemical Cells

Experiments have shown that improved hydride-forming negative electrodes for rechargeable nickel/metal hydride (Ni/MH) electrochemical cells can be made by substituting Ge for...

Briefs: Electronics & Computers

LaNi₅₋ₓSnₓ Electrodes for Ni/MH Electrochemical Cells

Experiments have shown that improved hydride-forming negative electrodes for rechargeable nickel/metal hydride (Ni/MH) electrochemical cells can be made by substituting Sn for...

Briefs: Electronics & Computers

Computing Limiting Voltages vs. Temperatures for Ni/Cd Cells

Curves of limiting voltage (V) as a function of temperature (T) for nickel/cadmium cells and batteries can be computed by use of a mathematical cell model based on first...