Black horses in the era of full-flexibility intelligence: flexible battery with long life, suitable folding, resistance to destruction and high temperature resistance

Recently, a round of news about BOE's mass production of flexible screens was almost overbearing in the technology circles. The hot spot claimed that BOE announced that the first flexible OLED panel production line in China will be mass-produced in Chengdu and that it will go to Huawei, Xiaomi, OPPO, vivo, HP, ASUS and more than 10 customers delivered AMOLED flexible screens.

The newly emerging wallpaper OLED (Organic Light-Emitting Diode) display board will make goodbye to the hard-bones glass screen and open a new era of flexible display technology. The leap-forward development of flexible screens and the rapid advancement of technology can be as much as users expect: The new generation of collapsible flexible smartphones and smart wearable products are already in full swing. In fact, a technological breakthrough does not represent an overall breakthrough. The listing of new products needs to undergo repeated trials. Only when the technical performance of various aspects is mature, can it reach the mass production market.

Flexible smart wearable devices and flexible smart phones belong to the same electronic product, so it is the most basic requirement to provide services for users. As the core component of flexible electronic products, the choice of battery directly affects the design and function of flexible electronic products. Therefore, the flexible battery has become the most basic and core demand for a new generation of flexible products.

Next, we will walk into the new world of a new generation of flexible power supplies.

Ultra-thin zinc polymer battery: long life, bending resistance, rechargeable

A startup company in California, USA, is developing a flexible rechargeable battery. This battery can be cheaply printed on common industrial screen printers. The company, Imprint Energy, has tested ultra-thin zinc polymer batteries on wrist-worn devices and hopes to apply them to new electronics industries such as wearable electronics, smart phones, medical products, smart labels, and environmental sensors.

The ultra-thin zinc polymer battery replaces the design requirements that a bulky lithium-based battery cannot achieve with the characteristics of small size and flexibility while ensuring the safety of human body applications. Even in a small format, this battery can provide enough current for low-power wireless communication sensors and distinguish it from other types of thin batteries.

The battery used in most laptops and smartphones contains metallic lithium. Because of its high reactivity, it must be protected by increasing the size and volume.

Although the stability of zinc metal is higher, the water-based electrolyte in traditional zinc cells causes zinc to form a dendritic, branched-like structure that can develop from one electrode to another, resulting in a short circuit.

The ultra-thin zinc polymer battery is based on the company's co-founder Christine Ho to develop a solid polymer electrolyte that avoids this problem and also improves stability and charging capacity.

The company’s co-founder and president, Brooks Kincaid, said: This type of battery combines the best features of thin-film lithium batteries and printed batteries. The use of metallic zinc provides the company with production advantages. Due to the environmental stability of metallic zinc, it is possible for the company to dispense with the necessary protective equipment for the production of oxygen-sensitive lithium batteries.

"When it comes to limiting the development of new product development, these two days have caused me the most headache, one is the battery, the second is the product display," said the new device group vice president, said: "The existing battery less than 1000 bending cycle There was a catastrophic failure and the ultra-thin zinc polymer battery remained stable."

Recently, the company began researching a project funded by the U.S. military to develop batteries for sensors that monitor the health of soldiers. Other potential applications include powering sensor smart labels for tracking food and packaging.

Solid State Lithium-Ion Battery (LCB): Resistant to High Temperatures, Death, and Damage

Unlike liquid lithium batteries, which use liquid/colloidal electrolytes, LCB uses lithium-ceramic solid-state electrolytes, so there is no need to consider leakage problems. The LCB will not catch fire, burn, or explode even if it is destroyed by death, impact, puncture, or fire.

In general, all rechargeable lithium batteries will have a protection circuit to limit the voltage and prevent the battery from exploding and overdischarging as a result of overcharging causing an irreversible permanent damage to the battery. However, under the protection of the LCB without protection circuit, it is still safe to overcharge but can continue to work.

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