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Submission + - Tesla lays off 'more than 10%' of its global workforce (electrek.co)

Submitted by schwit1
schwit1 writes: “We don’t know which specific teams will be most or least affected by Tesla’s layoffs, but two well-known Tesla executives are now missing the “Tesla-affiliated” badge on twitter – Drew Baglino and Rohan Patel.”

Submission + - New charger could double the service-life of Li-Ion batteries 1

Submitted by NewtonsLaw
NewtonsLaw writes: Lithium-Ion (LI) batteries are the backbone of much of our modern technology. They're in our phones, our laptops, our smartwatches and even the EVs that are increasingly appearing on our roads. One of the problems with LI technolgy however, is the very finite life of those batteries.

In the case of an EV, the battery pack represents a very significant portion of the total price you pay when buying one. Right now, the life of EV batteries is generally considered to be at least eight years, under normal use. But what if that could be doubled — simply by changing the way those batteries are charged?

This announcement by researchers in Europe indicates that the service life (ie: the number of charg/discharge cycles) of LI batteries could be as much as doubled, through the use of a pulsed current charging technology.

The standard charge method for LI cells is to deliver a constant direct current (DC) until the voltage of the cell rises to around 4.2 volts, at which time the voltage is maintained at a constant level and the charge current allowed to fall off. Once the charge current reaches a predefined minimum level, the cell is considered charged.

The new pulsed current method does not use DC but instead opts to recharge by way of intermittent pulses of current. This is not a new charging technology although it's not the norm for LI cells. Pulsed current chargers have been used on older chemistries such as nickel-cadmium in order to reduce/eliminate the formation of dendrites that would otherwise create short-circuits or significantly increase the self-discharge rate. Applying this tech to recharging LI cells seems to be a significant game-changer, if the lab results are duplicated in "the real world (TM)"

Doubling the life of your EV's battery or even your smartphone's battery is no small thing.

Submission + - Oregon shutting down small farms to protect the environment

Submitted by Anonymous Coward
An anonymous reader writes: Small Farms in Oregon Suffer as New CAFO Definitions Threaten Livelihoods
In Oregon, the landscape of small-scale farming is undergoing a seismic shift due to recent regulatory changes affecting water rights and farm operations. These changes are casting a shadow over the future of family farms and local agriculture, invoking a series of legal challenges and widespread concern among the farming community.

At the core of the upheaval are two contentious issues: the expanded definition of Concentrated Animal Feeding Operations (CAFOs) and stringent water usage restrictions. These regulations have placed an undue burden on small farmers, many of whom are now facing the threat of closure due to what they view as overreaching government intervention.

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