The relationship of capacity and weight of lithium battery

The main battery type:The lithium battery, nickel battery and lead batteries

Atomic mass lithium nickel 58 lead 207 7

Lithium battery.A lithium atom put one electron mass energy than 7:1

Nickel batteries.Put two electronic mighty a nickel atoms

Lead batteries.A lead atom put 2 electronic 103.5:1

It can be seen.In the same quality of batteries.The largest lithium battery energy capacity of unit weight.

Why lithium ion batteries specific capacity big, from two aspects of the principle of lithium ion battery and material performance of.

When lithium ion battery, Li ion from the positive to take off the embedded after electrolyte embedded negative, negative on rich lithium, lithium anode in a poor state.Discharge, by contrast, when Li ion from the cathode embedded, after electrolyte embedded the anode, the anode is rich lithium state.And the cathode can receive lithium ion is necessarily greater than the positive can release lithium ion (charging less than words spare lithium ion no place to stay!).

Therefore, basic depends on the anode material of lithium ion battery capacity of capacity.The capacity of the anode materials such as cobalt acid lithium is very big, so the lithium ion battery of specific capacity is very large.As for why the specific capacity than other secondary battery, lithium ion batteries that's different working principle

Average voltage high voltage of 3.7 V, 1.5 V lead-acid, nickel-metal hydride 1.2

Volume capacity lower than the nickel metal hydride,

Lithium battery energy density and even upstairs said (specific capacity, seems should not be so called) is equal to U * I * t = U * capacity, should be bigger than Ni-Mh, is not very tall, but Ni-Mh have memory effect to nickel metal hydride (not know)

There are two kinds of specific capacity, a specific storage quality, namely the unit mass of batteries or can release the power of active substance;The other is a specific storage volume, per unit of volume of batteries or can release the power of active substance.

Chinese name given foreign names specific capacity profile is a specific storage volume weight unit for L

There are two kinds of specific capacity, a specific storage quality, namely the unit mass of batteries or can release the power of active substance;The other is a specific storage volume, per unit of volume of batteries or can release the power of active substance.Can by coulometer power, also can be in mAh or Ah, or in a Faraday.

Quality given = capacity/quality

For capacitor, capacitance is F (law) the capacity of the unit, also can use mF, uF, etc.

For batteries, the capacity of the unit is mAh (mAh), the current multiplied by time, also can use Ah (Ann).

Quality is the unit of g (g).

Similarly,

Specific storage volume = capacity/volume

Now there are some famous domestic non original battery capacity between 1500-1800 mAh, is OK.But like the copycat easily thousands of mAh is exaggerated.

The weight of the laptop battery consists of two parts:

1, a part of the chemical reactions inside

Part 2,

So can't rated capacity by weight.

Besides your itself capacity difference between 4600 and 4800, and the capacity of the battery nominal doesn't mean that he really has such a large capacity

Generally have brand, good quality battery is heavier

According to understand, Hitachi mike Selma is developing a new technology, can make a 3200 mAh battery has only 2000 mAh battery the size of the volume, this technology is actually out of mike's laboratory.

Besides can promote 60% of battery capacity, Hitachi's new technology can reduce the rate of battery drain, so you can without any increase in charging time, on the basis of extending battery life.

Volume of new battery technology and can improve power by 60%

Low battery is puzzled many vendors.Hitachi mike's first real-time monitoring of lithium ion movement, with the monitoring data, Hitachi mike Selma construct a battery model, is used to solve the problem of the stagnation of the lithium ion.In this way, they can improve energy density per unit volume, at the same time also can inhibit the degradation of the battery, so as to prolong the life time of the battery.

For consumers, the eight core processor, 1920 * 1080 full hd screen, and other high-end smartphones some of the features of consumes most of the battery.The manufacturer has two choices: either to the user a short battery life, either with huge battery of super-long standby time in order to meet user needs.And by the technique of Hitachi mike Selma, vendors can under the premise of without sacrificing the thickness of the phone, extend the standby time of mobile phone.

It is understood that this technology will be later in the year to the market.

The page contains the contents of the machine translation.