| Title |
Copper hexacyanoferrate battery electrodes with long cycle life and high power
|
|---|---|
| Published in |
Nature Communications, November 2011
|
| DOI | 10.1038/ncomms1563 |
| Pubmed ID | |
| Authors |
Colin D. Wessells, Robert A. Huggins, Yi Cui |
| Abstract |
Short-term transients, including those related to wind and solar sources, present challenges to the electrical grid. Stationary energy storage systems that can operate for many cycles, at high power, with high round-trip energy efficiency, and at low cost are required. Existing energy storage technologies cannot satisfy these requirements. Here we show that crystalline nanoparticles of copper hexacyanoferrate, which has an ultra-low strain open framework structure, can be operated as a battery electrode in inexpensive aqueous electrolytes. After 40,000 deep discharge cycles at a 17 C rate, 83% of the original capacity of copper hexacyanoferrate is retained. Even at a very high cycling rate of 83 C, two thirds of its maximum discharge capacity is observed. At modest current densities, round-trip energy efficiencies of 99% can be achieved. The low-cost, scalable, room-temperature co-precipitation synthesis and excellent electrode performance of copper hexacyanoferrate make it attractive for large-scale energy storage systems. |
Twitter Demographics
The data shown below were collected from the profiles of 9 tweeters who shared this research output. Click here to find out more about how the information was compiled.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Canada | 1 | 11% |
| United States | 1 | 11% |
| Norway | 1 | 11% |
| United Kingdom | 1 | 11% |
| Venezuela, Bolivarian Republic of | 1 | 11% |
| Australia | 1 | 11% |
| Unknown | 3 | 33% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Members of the public | 8 | 89% |
| Science communicators (journalists, bloggers, editors) | 1 | 11% |
Mendeley readers
The data shown below were compiled from readership statistics for 558 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| United States | 11 | 2% |
| France | 2 | <1% |
| Japan | 2 | <1% |
| United Kingdom | 1 | <1% |
| Germany | 1 | <1% |
| Italy | 1 | <1% |
| China | 1 | <1% |
| Unknown | 539 | 97% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Ph. D. Student | 155 | 28% |
| Researcher | 88 | 16% |
| Student > Master | 74 | 13% |
| Student > Bachelor | 38 | 7% |
| Student > Doctoral Student | 28 | 5% |
| Other | 69 | 12% |
| Unknown | 106 | 19% |
| Readers by discipline | Count | As % |
|---|---|---|
| Chemistry | 170 | 30% |
| Materials Science | 106 | 19% |
| Engineering | 57 | 10% |
| Chemical Engineering | 24 | 4% |
| Physics and Astronomy | 22 | 4% |
| Other | 45 | 8% |
| Unknown | 134 | 24% |
Attention Score in Context
This research output has an Altmetric Attention Score of 41. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 31 January 2017.
All research outputs
#837,507
of 22,659,164 outputs
Outputs from Nature Communications
#13,801
of 46,552 outputs
Outputs of similar age
#5,104
of 239,425 outputs
Outputs of similar age from Nature Communications
#14
of 110 outputs
Altmetric has tracked 22,659,164 research outputs across all sources so far. Compared to these this one has done particularly well and is in the 96th percentile: it's in the top 5% of all research outputs ever tracked by Altmetric.
So far Altmetric has tracked 46,552 research outputs from this source. They typically receive a lot more attention than average, with a mean Attention Score of 55.4. This one has gotten more attention than average, scoring higher than 70% of its peers.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 239,425 tracked outputs that were published within six weeks on either side of this one in any source. This one has done particularly well, scoring higher than 97% of its contemporaries.
We're also able to compare this research output to 110 others from the same source and published within six weeks on either side of this one. This one has done well, scoring higher than 87% of its contemporaries.