電気自動車を購入する友人は、北汽新能源、BYD、テスラなどでよく使われている三元系リチウム電池の名前を聞いたことがあるでしょう。では、なぜ三元系リチウム電池は三元リチウム電池と呼ばれるのでしょうか？三元とはどの三元系を指すのでしょうか？3つの要素の関係は？今日はこの疑問を解決します。なぜ三元系リチウム電池と呼ばれるのでしょうか？どの三元系？三元系リチウム電池の正式名称は、「ニッケルコバルトマンガンリチウムやニッケルコバルトアルミナなどの三元系ポリマーを正極材料として使用するリチウムイオン二次電池」です。）、マンガン（Mn）またはアルミニウム（Al）の3つの金属のポリマーです。 […]
電気自動車でよく話題になる三元系リチウム電池、それはどの三元系ですか？ 続きを読む "
What is Black Friday? Americans traditionally use different colors of ink for bookkeeping. Among them, red ink means loss and black ink means profit. After Thanksgiving, the demand for various commodities has increased sharply, and merchants hope to make a lot of money, and there is a black ink on the accounts, so it is not difficult to understand why Westerners call such a day of shopping spree “BlackFriday” (#BlackFriday)”. There are many theories about the origin of “Black Friday”, one of which refers to a crowd of people who go to the mall to shop in long queues on the Friday after #Thanksgiving. A more common view is that
What is the origin of Black Friday in the United States? 続きを読む "
Lithium-ion batteries use lithium-containing compounds as the positive electrode. During the charging and discharging process, lithium ions are extracted and inserted back and forth between the positive and negative electrodes of the battery to achieve charging and discharging. The inside of a lithium-ion battery is mainly composed of a positive electrode, a negative electrode, an electrolyte and a separator. Lithium-ion batteries mainly rely on the movement of lithium ions between the positive and negative electrodes to work. During the charging and discharging process, Li+ intercalates and deintercalates back and forth between the two electrodes: during charging, Li+ deintercalates from the positive electrode and intercalates into the negative electrode through the electrolyte,
What are the advantages of lithium batteries? 続きを読む "
Against the background of energy crisis and environmental pollution, lithium-ion batteries, as an ideal energy source for development in the 21st century, have received more and more attention. However, some failure phenomena may occur in the production, transportation, and use of lithium-ion batteries. Moreover, the failure of a single battery will affect the performance and reliability of the entire battery pack, and even cause the battery pack to stop working or other safety issues. In recent years, there have been many battery-related fire and explosion accidents at home and abroad: the Tesla Model S electric car fire in the United States, the Samsung Note7 mobile phone battery fire accident, the
Classification of lithium battery failure and the cause of failure 続きを読む "
The three core functions of BMS are battery cell monitoring, state of charge (SOC) estimation, and cell balancing. Core functions of BMS 1) Cell monitoring technology 1. Single battery voltage collection; 2. Single battery temperature collection; 3. Battery pack current detection; The accurate measurement of temperature is also very important for the working status of the battery pack, including the temperature measurement of a single battery and the temperature monitoring of the cooling liquid of the battery pack. This requires a reasonable setting of the location and number of temperature sensors to be used in order to form a good cooperation with the BMS control module. The monitoring of the temperature of
Three core functions of lithium battery BMS and five misunderstandings 続きを読む "
Do you know about UPS and Mobile power supply? How much do you know? Are you still stupidly not knowing the difference? What is the difference in their application areas? How should we choose? The following is a simple distinction between UPS and mobile power. 1.Refer to different UPS power supply: Uninterruptible power supply(UPS). It is a system equipment that connects batteries (mostly lead-acid maintenance-free batteries) to the host, and converts DC power into mains power through module circuits such as the host inverter. It is a system equipment that can provide continuous, stable, Important external equipment for uninterrupted power supply. Mobile power supply: mobile power pack (MPP), a portable charger that integrates
The difference between UPS and mobile power supply 続きを読む "
Comparison of 18650 lithium battery and polymer battery The 3.7v 18650 lithium battery is widely used in life, and due to the continuous development and upgrade of energy batteries, lithium battery is more popular, and it can be seen in various devices. The polymer lithium battery is very different from the 18650 lithium battery, the originator of the lithium battery. This kind of battery is coated with some polymer on the outside, so that the battery can have a longer service life. Among them, there is a very The advantageous component is the “all polymer”, which is injected into the electrolyte to form the electrolyte. Let’s look at the comparison
It is understood that Japan’s SONY company set a standard lithium-ion battery model in order to save costs, where 18 means a diameter of 18mm, 65 means a length of 65mm, and 0 means a cylindrical battery. It is the originator of the 18650 lithium-ion battery. Our common 18650 batteries are divided into lithium-ion batteries and lithium iron phosphate batteries. The nominal voltage of the lithium ion battery is 3.7v, the charging cut-off voltage is 4.2v, the nominal voltage of the lithium iron phosphate battery is 3.2V, the charging cut-off voltage is 3.6v, the capacity is usually 1200mAh-3350mAh, and the common capacity is 2200mAh-2600mAh . It is generally believed that if
3 minutes to teach you what is 18650 lithium battery! 続きを読む "
Lithium battery can only be charged up to 500 times? I believe most consumers have heard that the life of a lithium battery is “500 times”, 500 times of charge and discharge, beyond this time, the battery “falls asleep”, many friends in order to extend the battery life, every time Only charge the battery when the battery is completely exhausted. Is this really good for the life of the battery? The answer is no. The life of a lithium battery is “500 times”, which does not refer to the number of charging and discharging, but the cycle of charging and discharging. A charge cycle means that the full capacity of the battery
Lithium-ion battery life 続きを読む "
The Advantages of a Power Bank: Power banks are great for charging your phone on the move or when you don’t have electricity. Apart from this, power banks have a large capacity which allows you to charge your phone multiple times without having to recharge it. The power banks can also be charged using wall sockets or car chargers if the battery is low. The disadvantages of a power bank: There are also some disadvantages to power banks. Many power banks are heavy or costly. They must be charged as soon as their battery is low. If they are lower, they will drain faster. In some cases, they can also affect the battery
パワーバンクのメリットとデメリットは何ですか 続きを読む "
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