The Anode, an integral part of a Lithium-ion cell is one of the two electrodes. Let’s imagine that you are looking at an anode at a distance. What you will see is a metal foil, on which there is a black looking substance attached on top. Anode of a Lithium-ion cell (Reference: Bruno Vanzieleghem, Energy...Continue Reading
Tabless architecture cells The new cell will be 46mm in diameter and 80mm in heightLaser padded the existing foils to enable dozens of connections into the active materialElectron has to travel less distanceBetter power to weight ratioTabs slow down rate of production5x energy, 16% range increase, 6x power [AG comments]-> A problem with larger diameter...Continue Reading
Laptop batteries have been using 18650 type Lithium-ion cells for many years. With phones becoming more powerful, their batteries often fall short of the energy a user demands from a phone. This lead to a hot market for power banks. A lot of power banks have one or many 18650 type cell in them too....Continue Reading
Range estimation is an important parameter for putting an Electric Vehicle on the road. Certification tests require disclosure of estimated range at different conditions, and more importantly users of the vehicle make daily decisions about their driving based on the amount of range left as calculated by the vehicle itself.A lot of parameters can be...Continue Reading
Although batteries have chemical energy enclosed in a mechanical housing, we monitor them electrically while they are in use. The discharge characteristics are an important parameter to be monitored while energy is being taken from the battery. Image credit – LG Chem Above is a graph of what discharging profiles for a Lithium-ion cells looks...Continue Reading
Hanwha Corp, based out of South Korea said in a press release today stating that it would be supplying formation equipment to the Tesla Gigafactories in Fremont, California, and at later stages in the Gigafactories located in Germany and China as well. We’ve talked in detail about the Formation process in the Battery Masterclass course...Continue Reading
During the initial design stage, we were looking at multiple options for sensing current that would flow in and out of the battery pack. As many of you know, there are mainly two approaches to sense current, these are can be classified as: Invasive – Sensing currents using shunt resistors or similarNon-Invasive – Sensing using...Continue Reading
When you hear about Lithium-ion battery safety, Thermal runaway is a very commonly talked about term. The purpose of this article and the attached video is to explain Thermal runaway in an intuitive way, so that the fear around it is a little less and the understanding a little more. As the name suggests, thermal...Continue Reading
In 2013, a Lithium-ion battery fire was discovered on a parked JAL airlines plane. After this, at-least 2 more planes which had similar failures which led to the grounding of the Boeing 787 Dreamliner until this issue was resolved. Boeing 787 Dreamliner Battery Failure Reports – Image credit – CNN Boeing had contracted out the...Continue Reading
Preconfiguration: Hardware Setup: Plug the ION shield on the arduino.Connect the 5V supply on the microUSB port on the ION-shield.Connect the arduino to your PC and download/open the Arduino IDE. Software setup: Open your git client (For ex. GitBash) & Download/clone the code from github You may also go this link and click on “Clone...Continue Reading
