Can cell phone batteries harm people?

Introduction Can cell phone batteries harm people? The battery itself will not cause any harm to the human body unless inferior batteries explode and other special circumstances. As the mobile phone signal is an ultra-high frequency signal, there will be

Can cell phone batteries harm people?

The battery itself will not cause any harm to the human body unless inferior batteries explode or other special circumstances.

As the mobile phone signal is an ultra-high frequency signal, it will radiate and affect people. . If you talk on the phone for a long time, you may feel dizzy.

And the mobile phone battery itself is protected by a case and is installed inside the mobile phone case. How can it harm people?

The most terrifying thing about people is illusion. . This is what we must be wary of.

What is the difference between lithium-ion batteries and lithium-polymer batteries?

Lithium Battery Dangers: Primary lithium batteries are unsafe and pose a risk of explosion; lithium-ion batteries based on lithium cobalt oxide cannot be discharged at high currents, itst expensive and have poor security. Lithium-ion batteries all require protection circuits to prevent the battery from being overcharged and discharged; the production requirements are high and the cost is high, and the use of high and low temperatures is very dangerous.

Lithium batteries are a type of battery that uses lithium metal or lithium alloy as the negative electrode material and uses a non-aqueous electrolyte solution. The weight of a lithium-ion battery is half that of a nickel-cadmium or nickel-hydrogen battery of the same capacity; The working voltage of a lithium-ion battery cell is 3.7V, which is equivalent to three nickel-cadmium or nickel batteries. -hydrogen batteries in series; Lithium-ion batteries do not contain metal. Lithium is not restricted by air transport regulations such as the ban on transporting batterieslithium in passenger planes.

Detailed information:

< p>Electrode materials for lithium batteries

1. Carbon negative electrode material. The negative electrode materials actually used in lithium-ion batteries are mainly carbon materials, such as artificial graphite, natural graphite, mesophase carbon microspheres, petroleum coke, carbon fiber, resin carbon pyrolytic, etc.

2. Tin-based negative electrode material. Tin-based negative electrode materials can be divided into two types: tin oxide and tin-based composite oxide. Oxides refer to oxides of metallic tin in various valence states. There are no commercial products.

3. Nitride. There are also no commercial products.

4. Alloys. Including tin-based alloys,s silicon-based alloys, germanium-based alloys, aluminum-based alloys, antimony-based alloys, magnesium-based alloys and other alloys, there are no commercial products.

5. On the nanoscale. Carbon nanotubes and nanoalloy materials.

6. Nano oxide. According to the latest market development trends in the new energy industry of lithium batteries in 2009, many companies began to use nano titanium oxide and nano silicon oxide to add to traditional graphite, nano oxide nanotubes. tin and carbon to significantly improve charging and discharging. the capacity of lithium batteries and the number of charges and discharges.

Baidu Encyclopedia - Lithium Batteries

The difference between lithium ion batteries and lithium polymer batteries:

1 .

p>

Raw materials for lithium-i batteriesone are electrolytes (liquid or colloidal); The raw materials of lithium polymer batteries are electrolytes, including polymer electrolytes (solid or colloidal) and organic electrolytes.

2. Safety Differences

Lithium-ion batteries are subject to explosion in high temperature and high pressure environments; Lithium polymer batteries use aluminum-plastic film as the outer casing. organic electrolytes are used inside, even if the liquid is hot and does not explode.

3. Different shapes

Polymer batteries can be thin, in any area and in any shape, the reason is that the electrolyte can be solid or colloidal rather than liquid. use electrolyte and require a sturdy case as secondary packaging to contain the electrolyte.

4. Different cell voltages

Since the batteries use polymer materials, multi-layer combinations can be made in cells to achieve high voltages, while lithium battery cells have a nominal capacity. is 3.6V. If you want to achieve high voltage in actual use, you need to connect several cells in series to form an ideal high voltage working platform.

5. Different manufacturing processes

The thinner the polymer battery, the better it can be produced, and the thicker the lithium battery, the better it can be produced. to expand into more areas of application.

6. Capacity

The capacity of polymer batteries has not been improved effectively and has been reduced compared to standard capacity lithium batteries.

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