BusinessMarketing 2 pages, words Write a short paper answering the mini-case questions on page 63 of the textbook.
The proliferation of electric vehicles and renewable energy sources is driving demand for rechargeable batteries that store and deliver large amounts of energy safely, efficiently and inexpensively. Zinc-based batteries offer some key advantages over lithium-ion, including low-cost and non-flammability.
Kilo per kilo, zinc -air batteries can potentially store five times more energy than lithium-ion, while zinc-nickel batteries produce relatively high voltages potentially useful because fewer batteries would be needed to power a device.
Yet zinc batteries also tend to lose their energy storage capacity after just a few hundred recharging cycles, and no zinc battery has yet combined both a decent voltage of more than 1. The battery has a zinc anode, while its cathode is based on a carbon-coated nickel foam covered with nickel cobalt oxide nanowires.
The liquid electrolyte between the electrodes contains hydroxide anions dissolved in water. When the battery charges, hydroxide ions from the electrolyte react with metal oxides in the cathode to produce oxyhydroxide compounds, freeing electrons.
But the metals in the cathode also act as a catalyst, combining hydroxide anions to produce oxygen, water, and more electrons. These electrons flow around the circuit to the anode, where they combine with zinc ions in the electrolyte to produce zinc metal.
During discharge, these electrochemical processes are reversed. The battery has a stable two-step discharge voltage between 1.
Zong estimates that the battery can store about Watt-hours per kilogram, with potential for improvement. The two chemical processes at the cathode produce different voltages, which could be an advantage for applications that initially require a higher voltage, such as unmanned aerial vehicles that need an energy boost to get airborne and then a lower voltage to sustain their flight.Search among more than user manuals and view them online attheheels.com Kari DePhillips is the owner of The Content Factory and co-founder of attheheels.com's been featured everywhere from Fast Company to Forbes to NBC News for her management style and digital marketing expertise, and Thrive calls her a "limit‑breaking female founder.".
Latest trending topics being covered on ZDNet including Reviews, Tech Industry, Security, Hardware, Apple, and Windows. Asian Hardware Oriented Security and Trust Symposium (AsianHOST) is an annual symposium which aims to facilitate the rapid growth of hardware-based security research and development.
Another goal of this conference is to help build hardware security community in Asian and Pacific area. From the DeLorean and New Coke to the Newton and Google Glass, here's a list of the biggest product flops from corporate giants.
Product innovation is one way that large corporations stay competitive in a rapidly changing marketplace, but it doesn’t always work out when big brands attempt. Hardware We as a bioinformatics lab have high-performance clusters, safe data storage, and illumina sequencer. Everything is in house, less than meters from our office.