IT168 information With the development of mobile phone battery technology, many mobile phones have already used large-capacity batteries. Currently, the 5.5-inch mobile phone has reached a battery capacity of 3000mAh, and better 5.5-inch mobile phone battery capacity has reached 4000mAh. The battery capacity of the mobile phone Jinli M6 Plus even used a large capacity 6020mAh battery. While many mobile phone manufacturers have begun to use high-density batteries, the highest battery density in the market can reach 700Wh/L, and the higher the battery density, the greater the battery capacity of the same volume of batteries. The battery density is a very abstract concept for the user, and it is not easy to understand, and many manufacturers will not provide this data. Then we can use a value to better the battery capacity and the size of the phone. Is the relationship clear?
A set of data tells you: The evolution of mobile phone batteries in recent years
We know that the increase in mobile phone battery capacity will directly increase the mobile phone's battery life, but it is limited by the lithium-ion battery technology. The current highest battery density is 700Wh/L. Of course, mobile phone manufacturers also want to insert a larger-capacity battery into a limited-size mobile phone case. Inside, high-density batteries are very important at this time.
Lithium Ion State in Battery: Left: High Density Battery Right: Ordinary Battery
On the other hand, mobile phone manufacturers are also advancing in mobile phone design capabilities and manufacturing capabilities. The mobile phone's PCB integration is even higher, and the thickness of the screen is also thinner, so that the body has more space to free up larger batteries. Improvements in battery density and improvements in body design have enabled the phone to fit into larger batteries, and have now created a very large battery with a reasonable size.
According to the above mentioned improvements in battery capacity and mobile phone volume can improve the battery life, we also proposed a relationship between mobile phone battery capacity and mobile phone volume calculation method: battery capacity divided by the size of the phone to get a value to represent the mobile phone battery The relationship between capacity and handset volume.
Battery and body volume ratio calculation formula
The calculation method involves two values ​​of the battery capacity of the mobile phone and the volume of the mobile phone. The battery capacity of the mobile phone can be easily obtained in the parameters provided by the mobile phone manufacturer. In addition, the volume of the mobile phone is the product of three values ​​of the length, width, and thickness of the mobile phone, but the general mobile phone manufacturers are It is mm to mark the length, width and thickness of the mobile phone. If you use mm to calculate, the final ratio is very large. If it is not good, we calculate the length, width, and thickness of the mobile phone. In cm as a unit, a two-digit value is finally obtained .
Meizu PRO 6s battery-to-body ratio is 40.085
Here to give an example, the size of the Jin Li M6 Plus body 160x80.8x8.2mm, battery capacity of 6020mAh, into the formula, the final ratio of the battery and body size is 56.787. As another example, the size of the Meizu PRO 6s is 147.7x70.8x7.3mm, and the battery capacity is 3060mAh. It is calculated in the formula, and the ratio of the battery to the body is 40.085.
Here to explain, when the body size is only calculated by the length, width, thickness of the three numerical product, this volume does not represent the true size of the phone, mobile phone design has R angle and the back of the phone has radian, so the real number and our calculation There may be a certain amount of error in the numbers used. If the mobile phone is designed to have more squared error values, the more rounded the mobile phone design is, the larger the error value will be .
2016 model battery and body volume ratio
Having said how to calculate the ratio of battery and body volume, let's look at the data again. We compiled the data of 87 mobile phones released in 2016. We can see that the ratio of the battery and body size of mainstream mobile phones in 2016 was between 23 and 56 with a median of 37.209 and an average value of 37.689 . For the mainstream specifications of 5 inches, 5.5 inches, and 6 inches, the typical battery capacity is 2800mAh, 3000mAh, and 4000mAh, respectively. Jin Li took the first and second place in terms of brand. Xiaomi’s products were in an upstream position. Huawei and Nubian’s several products had outstanding performance. The ratio of batteries and body sizes of OPPO and vivo branded products was significant. Mainly in the midstream position, the ratio of Meizu's products is in the lower middle position, perhaps related to the rounded design of Meizu's products, that is, the deviation between the actual volume and the calculated volume mentioned above.
Moto Z has a 5.2mm fuselage thickness 2450mAh battery, so that the ratio of battery and body size up to 40
It is worth noting that the mote Z phone body thickness is only 5.2mm, into the 2450mAh battery, slim body with a seemingly ordinary battery, even the battery and body volume ratio of up to 40, also shows The fuselage design is also a very important factor affecting the ratio of the battery and the body volume. The body is made thin while adding a large-capacity battery. The requirements for the density of the battery will increase. For the mobile phone body design and component stacking The requirements are even higher.
Jinli M6 and Jinli M6 Plus are the highest mobile phones with the highest battery and body ratio
Looking at the top 10 mobile phones, you can see that the first and second names are Jinli’s mobile phones, namely the Jinli M6 and Jinli M6 Plus, and the third is the 360 ​​mobile phone N4S. The batteries and the fuselage of these three machines are The ratio of the volume is more than 50, indicating that these three mobile phones have a very large capacity battery in a limited body size. As long as the battery capacity exceeds 5000mAh, the ratio of the battery to the body volume can be higher. In addition, the top 10 mobile phone millet also occupied 3 seats, Jin Li occupied 2 seats.
Huawei Changxiang 6 and Red Rice 4 are 5-inch screen designs but have a 4000mAh battery
Huawei Changxiang 6 and Red Rice 4 are particularly noteworthy. They are two 5-inch mobile phones among the top 10. The two phones have just been released and can be equipped with a 4000mAh capacity on a 5-inch screen. The battery, so that the ratio of the battery to the body of these two phones reached 48 and 45, respectively. This allows us to see that nowadays small-sized mobile phones can also be equipped with larger capacity batteries, perhaps this is also a trend of future development.
Large battery cell phone thickness increase is a design choice
In the top ten mobile phones, 70% of the body's thickness exceeds 8mm, and most of the body's weight exceeds 160g . The maximum weight is 215g. This is because the increase in the battery capacity also requires a larger body size. The increase in the weight of the battery also causes an increase in the weight of the body, which is also a design choice for a large-capacity battery handset.
Looking from behind, you can see that the ratio of the battery and body volume is the lowest glory smooth play 5, followed by 360 mobile phone f4. There are two kinds of situations here that result in a low ratio of battery and body volume. Glory Play 5 is a mobile phone that can replace the battery, until the battery capacity is too low, the same situation also appears on the LG G6. The second situation is that the 360 ​​mobile phone f4 mobile phone has a very sleek design, and the calculated volume and actual volume have a large deviation, resulting in the calculated ratio is low, this situation also appears in Mito V4s.
Increase in battery capacity under the same volume Increase in ratio between battery and body volume
Meizu PRO 6s battery capacity increases body size basically no change battery and body volume ratio increased significantly
Look at some small data, Meizu PRO 6s has just released, the battery capacity from PRO 6 of 2560mAh to PRO 6s of 3060mAh, body thickness PRO 6s only thicker 0.25mm, you can see the battery capacity increased, body size Invariably or with few changes, it directly led to a significant increase in the ratio of the battery and body size of the Meizu PRO 6s.
Longitudinal comparison between the ratio of battery and body volume
Looking at the longitudinal data again, taking the 3000mAh battery capacity as latitude, you can see some changes in the ratio between the cell phone battery and the body volume over the past four years. For the representative models from 2013 to 2015, the ratio between the battery and body volume is between 27 and 30, and the ratio is less improved during the three years . This indicates that the development of the battery has encountered a bottleneck, and the battery density has been very limited. In the past three years, only by redesigning the mobile phone body and improving the stacking technology to increase the internal space of the fuselage, so as to put a larger battery. By 2016, the battery density has been greatly improved , and the ratio between the battery and the body has been increased. This has also resulted in the 2016 average reaching a high value of 37.
Summary:
1, battery and body volume value related to the body design and battery capacity in two aspects
The ratio between the battery and body is related to the two important data of the fuselage design and battery capacity. The larger the battery, the smaller the body volume. The ratio of the battery and the body volume is bigger, of course, there is no body volume. A cell phone with a small battery. From this ratio, we can see the development direction of the two mobile phones. First, the cell phone battery density is getting higher and higher, and the cell phone can be put into a larger battery with a reasonable body size. Second, the body design can be designed to have a thinner mobile phone. The mobile phone is smaller in size, and the slim phone can have the same battery capacity as a normal mobile phone.
Large capacity battery
2. The ratio between the battery and body volume does not fully represent endurance
The higher the ratio of the battery and the body size, the higher the capacity of the battery that can be put into a unit volume. Increasing the battery capacity is the key to improving the battery life, but the hardware optimization and system optimization are also another important factor in improving battery life. Can not be ignored.
3, high-density battery is the trend of development this year
From the vertical data, we can see that high-density batteries are a trend for this year's development. The development of battery fuselage was slow between 2013 and 2015. By 2016, there was a rapid development. The emergence of high-density batteries allowed batteries and machines to emerge. The ratio of body volume has been greatly improved in 2016, and large-capacity battery phones have also achieved a good development in 2016.
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