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When subjected to a short circuit or overcharged, temperatures can even exceed 300 degrees Fahrenheit, in some cases even leading to explosions. These problems and shortcomings forced several types of lithium-ion batteries to be completely pulled off the market. In order to quell these issues, the Stanford research team took a rather different approach in regards to battery cooling.

They enveloped one of the electrodes in a thin and elastic polyethylene film comprised of nanoscale nickel spikes covered in graphite. Being highly conductive, when these spikes touch one another they conduct electricity normally, allowing electrons to pass through the electrolyte gel. But if a certain temperature is reached, the film starts to expand, breaking the link between the spikes and shutting the battery down.

Once a specified temperature is reached once again by cooling off and contracting, the spikes become connected, allowing the battery to become active. The temperature at which this polyethylene film expands or regains its normal structure can be decided upon by the manufacturer. The experiment conducted at Stanford used a mark of 160 degrees Fahrenheit, with even just 1 degree above that point triggering an immediate shutdown.

The temperature was achieved through the use of a heat gun that raised the temperature of the battery which was currently being used. By replacing the components of the film, as well as tweaking the size and the distance between the spikes, the marked temperature can be easily fine-tuned in accordance with the manufacturer’s specifications.

Because this film-based technique is completely reversible, batteries will no longer become completely inactive after a short circuit or excessive overheating occurs. This makes this process extremely viable in the current technology market, which creates more high-energy reliant devices that are under the threat of overheating constantly. This film can be easily applied to laptop batteries and smartphone batteries without subtracting from their high performance and efficiency in any way at all.

Taking into account the fact that a battery that shuts down when overheating was developed at Stanford, there are extremely high odds that every major device manufacturer will adopt this new polyethylene-based technique when constructing batteries in the near future. But this is entirely dependent on the ease through which this type of battery is constructed, as well as how affordable a battery-manufacturing technology switch in regards to the required facility upgrades.

It's enough to make you want to drop everything and race for the nearest power outlet: Your workday isn't even done, and your smartphone or laptop battery is already in the red zone. If you're hoping that techno-progress will dispel that depleted feeling, you may be in for a long wait. Battery life is constrained by limitations in chemistry, and improvements aren't keeping pace with demands from modern gadgets.

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We're still dependent on the venerable lithium-ion cell, first commercialized by Sony in 1991; it's light, safe and holds a lot of charge relative to most alternatives, but it isn't getting better fast enough to keep up with our growing electronic demands.

So instead, manufacturers are doing their best to "cheat" their way around lithium-ion's limitations. The CES gadget show in Las Vegas [featured] plenty of workarounds that aim to keep your screen lit longer.

Proceed with caution, though: Manufacturer claims of battery life improvement can fall short of real-world experience.

Not that long ago, computer-chip makers competed to make their chips ever faster and more capable, with power consumption a secondary consideration. But the boom in energy hungry smartphones and laptops means that companies like Intel need to put much more emphasis on power efficiency these days.

Intel says its sixth-generation Core chips [pictured above and formerly] known as Skylake, add a little more than an hour to battery life to laptops compared with the previous generation, according to spokesman Scott Massey. The chips utilize a more compact design, hard-wired functions that used to be run via software and fine-tuning how they ramp power use up and down.

Better-Designed Laptops

Laptop manufacturers are smartly sipping power, too.

HP says the Spectre x360 notebook it introduced in March gains up to 72 minutes of battery life, for a total of up to 13 hours, thanks in part to Intel's new chip. Among other tricks, the PC doesn't refresh the screen as often if the image isn't moving. "If we can solve a bunch of small problems, they can add up," HP vice president Mike Nash said.

Similarly, Lenovo's new ThinkPad X1 Yoga tablet turns off its touch screen and keyboard backlight if it senses its owner is walking and has the screen folded back like an open book. Vaio, the computer maker formerly owned by Sony, says its Z Canvas launched in the U.S. in October benefits from shrinking components and efficiently distributing heat to make more room for a bigger battery.

And Dell says it has worked with manufacturers to squeeze more battery capacity into the same space. It says its efforts recently boosted the energy storage of its XPS 13 laptop by 7.7 percent compared to an earlier version of the same model .

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Maybe it's your phone that's not keeping up. If so, you might check out new accessories designed to make it easier and faster to charge back up.

Kickstarter-funded Ampy uses your body's kinetic energy to charge up a pager-sized device. Strap it to your arm or a belt and it can recharge a smartphone in real time; an hour of jogging or similar exercise yields about an hour of use. You could also just throw it in your bag and get the same extra hour of gadget life after a week of walking around -- not an awesome trade off, maybe, but possibly better than nothing.

The wireless-charging technology Qi makes it possible to charge a phone without plugging it in. Instead, you lay it down on a special pad and let electromagnetic field coupling do the work. Wireless charging has always been much slower than wired, although Qi's backers say it's speeding up. But wired charging is getting faster, too, at least for phones with the latest hardware -- and with Qi, you still have to line up your device just right on the sometimes fussy pads.

Microsoft's HoloLens headset lasts just five and a half hours on a single charge, dropping to just two and a half hours following intensive use. The augmented reality headset, unveiled last January, will be completely wireless, depending only on its inbuilt battery for power, the company's Bruce Harris said at an event in Tel Aviv. The news is reminiscent of Google Glass, which was plagued by poor battery life during its few years of availability. Google's smart glasses were only capable of lasting around half an hour while shooting video before needing recharging, or three hours of general active use. Unlike its virtual reality rivals Oculus Rift, HTC Vive and PlayStation VR, HoloLens overlays holograms into the wearer's real life environment, allowing them to battle robots and invading aliens inside their living room and witness the holograms appear to burst through the walls and ceiling of your physical room. Other applications including creating your own holograms within the company’s HoloStudio and 3D printing the finished result. Other details Harris revealed include that every HoloLens will have WiFi and Bluetooth connectivity, allowing wearers to connect with and play against others free from a laptop or smartphone connection. Another slight niggle may be the headset's currently limited field of view. Harris said the company planned to expand its scope later in the developmental process, but that at present, its view is comparable to watching a 15-inch monitor from two feet away.