Li-ion battery memory effect will be
Many friends believe that the power lithium battery must be used, or memory effect may also occur, in fact, this concept was first nickel cadmium batteries, nickel-cadmium batteries are the memory effect, so let him go to make electricity, the Laptop battery will be increased with the frequency of use while showing less and less state energy, and later nickel-metal hydride battery has been improved, had no obvious memory effect, because the nickel-metal hydride battery or will a certain degree of lattice leads to volume reduction still need to complete the regular charge and discharge to maintain its ability normal. Lithium batteries there was virtually no memory effect, you can at any time without affecting the battery charge and discharge capacity.
From another point of view, the memory effect of the battery refers to battery failure reversible, that is, after the failure of the battery can be re-back performance. The lithium battery is not reversible, performance and capacity continue to decline as the use of, there is no lithium batteries memory effect, another, thus eliminating the need for charging the deep memory of the deep cycle battery, which is the battery voltage to reach 1.0V, mobile phones can not stick to the battery voltage to 1V off their phones before nickel cadmium batteries require specialized equipment to conduct such a depth of discharge.
To summarize, there is no lithium batteries memory effect, the user need not worry, we can agree with the birth of lithium batteries is to eliminate the problems caused by the ‘memory effect, so that you can recharge the Dell Inspiron 5100 battery at any time without any worries.
The new lithium batteries are necessary to activate
This is an old subject, a majority of consumers is necessary to activate the battery, almost all of the sales staff so that the battery is first three full 12 hours, and to activate the battery. Most consumers do, and some people poor battery performance attributed to the activation of the battery is not good.
So do batteries need to activate? The answer is yes, you need to activate! However, this process is completed by the manufacturer, has nothing to do with the user, the user had no means complete. Lithium batteries actual activation process is as follows: lithium-ion battery electrolyte impart SHELL – Seal – as it is a constant voltage, then discharge, so for a few cycles, so that complete infiltration electrolyte electrode fully activated until the date requested capacity, the activation process – under capacity, which means that after the lithium-ion battery plant to the user is already turned off the hands of the. In addition, some processes require the activation of the hp Business Notebook nx7400 battery cell in the state open again after closing, unless you have batteries, manufacturing equipment, or how to accomplish?
But why some descriptions of products able to read, easy to use three primary users should be on the phone a full charge and discharge? Is it not to activate? Indeed, the fact is that the factory battery, then the sale, then the hands of the user should experience a period of time, one or more months in this way, the battery materials electrodes will be “passive”, proposed the initial specification using the three fastest times of the fully charged battery-discharge process, to quickly eliminate passivation of electrode materials to achieve the highest performance. However, this process does not require a full 12 hours, it must be completed. In fact, we ignore this point, the normal period of time can also be used to eliminate passivation.
Li-ion battery can load and unload 500 times
I think the vast majority of consumers have heard the sony VGP-BPS2A battery life of lithium is “500 times, 500 charge and discharge more than this number, the battery on the” end “, and many friends to be able to prolong battery life, each time in to recharge the battery when it is completely exhausted, and thus extend the battery life really works? The answer is no.
In fact, there is a conceptual error, the battery life of lithium is “500 times” refers not to the frequency of recharging, but a charge-discharge cycles, for example, the first charge of 40% with a period of time and later occupied by 20%, other and later used a load of 30%, then the next … 20% … 20% in the middle, or only 10% of electricity when the cumulative total to complete a charge cycle. Followed by the next cycle.
1 lithium-ion battery on the first day, only half the electricity, and then it is fully charged. If the next day too so, ie with half the load, a total of two charge down, this can not be counted as one charge cycle, rather than two. Thus, it is usually possible to cross several times to complete a charge cycle. Each complete a charge cycle, energy consumption will be reduced somewhat. Once However, the reduction of the amplitude is very low, high cycle toshiba PA3399U-2BAS battery quality of many officials will retain the original capacity of 80%. Suppose a complete discharge of electricity is the Q, a cell cycle 500 times, it is then subject to the life of the total power is 500Q, if we use half the electricity load, fixed number of charge cycles for A, a simple solution, a / 2Q * A = 500Q, A should be 1000. So for the life of the battery, you can use the measurement cycle, but we do not use numbers to quantify.
The pursuit of high performance and overload in relation to rejection
Some of our friends in pursuit of battery performance, as over-charging and discharging of the battery. Lithium-ion batteries that will cause permanent damage to the positive and negative, from the molecular level of intuitive understanding, an excessive discharge of carbon anode will lead to excessive release of lithium-ion and shows a lamellar structure collapsed, too much will overload the lithium-ion structure in hard carbon going into the anode, causing some of the lithium-ion batteries can not be released. Therefore, lithium-ion BATBL50L6 batteries are usually equipped with charge control circuit causes discharge.
In addition, most cell phones now use pulses of high current at full load to nearly full power quickly when the overpayment, to prevent the circuit from the pulse high-current is converted a gradual reduction of the burden of maintenance, so even if the power to detect some bias due to the most comprehensive electric current is smaller at the last minute of the load current is near 0. So for these devices load, overload is also a wasted effort.
For the performance of lithium batteries used in 100, after reaching a peak is also false to assert, for liquid lithium-ion batteries, but there is no such phenomenon hump cycle capacity lithium battery factory ion batteries in the final retreat, the performance of its capabilities is to use a short time, the performance cycle will not rebound.