Flashing new life into lithium-ion anodes
How many rechargeable lithium-ion batteries are you wearing? How many are in your general vicinity?
Dec 12, 2022
0
88
Energy & Green Tech
How many rechargeable lithium-ion batteries are you wearing? How many are in your general vicinity?
Dec 12, 2022
0
88
Energy & Green Tech
Researchers around the world are on a mission to relieve a bottleneck in the clean energy revolution: batteries. From electric vehicles to renewable grid-scale energy storage, batteries are at the heart of society's most ...
Dec 5, 2022
0
167
Energy & Green Tech
Scientists from Nanyang Technological University, Singapore (NTU Singapore) have developed a technique to convert waste paper, from single-use packaging and bags, and cardboard boxes, into a crucial component of lithium-ion ...
Nov 23, 2022
0
74
Energy & Green Tech
Can we survive three minutes without air or three days without water? How about without batteries? Imagine not having a battery for three hours.
Nov 2, 2022
0
139
Energy & Green Tech
The number of newly registered electric vehicles (EVs) in Korea surpassed 100,000 units last year alone. Norway is the only other country to match such numbers. The core materials that determine the battery life and charging ...
Oct 6, 2022
1
315
Energy & Green Tech
A bit of brushing may be the secret to making better rechargeable lithium batteries.
Aug 22, 2022
0
56
Energy & Green Tech
Researchers at Boise State University have developed a new approach to making novel lithium-ion battery materials. Starting from an amorphous (i.e., a material lacking long-range order) niobium oxide, the team discovered ...
Aug 10, 2022
0
72
Energy & Green Tech
Silicon is the second most abundant element on earth, making up a hefty 27.7% percent of the earth's crust. Apart from its ability to create sandy beaches and clear glasses, silicon also holds the potential to make highly ...
Aug 8, 2022
0
78
Energy & Green Tech
A team of researchers from the Technion–Israel Institute of Technology has developed a proof-of-concept for a novel rechargeable silicon (Si) battery, as well as its design and architecture that enables Si to be reversibly ...
Jul 27, 2022
0
160
Electronics & Semiconductors
When temperatures fall below freezing, cellphones need to be recharged frequently, and electric cars have shorter driving ranges. This is because their lithium-ion batteries' anodes get sluggish, holding less charge and draining ...
Jun 8, 2022
0
127
An anode is an electrode through which electric current flows into a polarized electrical device. Mnemonic: ACID (Anode Current Into Device). Electrons flow in the opposite direction to the electric current (flow of hypothetical positive charge)
A widespread misconception[citation needed] is that anode polarity is always positive. This is often incorrectly inferred from the correct fact that in all electrochemical devices negatively charged anions move towards the anode (hence their name) and/or positively charged cations move away from it. In fact anode polarity depends on the device type, and sometimes even in which mode it operates, as per the above electric current direction-based universal definition. Consequently, as can be seen from the following examples, in a device which consumes power the anode is positive, and in a device which provides power the anode is negative:
An electrode through which current flows the other way (out of the device) is termed a cathode.
This text uses material from Wikipedia, licensed under CC BY-SA