Affected by the worldwide storm of Samsung Note7 mobile phone battery, the public's concern about battery safety has gradually surfaced Prior to this, the public opinion was once dominated by the argument that "the higher the energy density, the better the lithium battery ", and the one-on-one lithium battery fire accident, like a head-on drink, caused the public to think deeply: where’s good security? Is there a safe lithium-ion battery that can be used without any worries on the vast earth? Solve battery safety issues "Why is the lithium battery on fire?" Answer: The active substance inside the battery reacts with the electrolyte, and the temperature is too high and the control is caused.

In recent years, domestic lithium-ion enterprises have turned to fully automated control and can realize large-scale and stable production of lithium-ion equipment based on the full use of foreign technology With the rapid growth of domestic lithium battery industry market demand and the rapid expansion of lithium battery manufacturers' capacity, the domestic competitiveness of lithium-ion special equipment manufacturing enterprises has increased significantly.

Short circuit test After the battery is fully charged, short-circuit the positive and negative electrodes of the battery with a wire with a resistance of not more than 50mΩ, and test the surface temperature of the battery The maximum temperature of the battery surface is 140 °C, the battery cap is opened, the battery does not ignite or explode; the needle test: Place the fully charged battery on a flat surface and pierce the battery along the radial direction with a 3mm steel needle.

According to the US "Automotive News" on April 2, although solid-state batteries are expected to become a breakthrough technology for electric vehicles, and are highly praised by Toyota and the public, Nissan is not optimistic about the potential of this battery The senior technical director of Nissan said that the development level of solid-state batteries is almost zero.

Everyone is familiar with lithium battery and nickel metal hydride battery Here I will briefly introduce the difference between nickel hydrogen battery and lithium battery.

"As a revolutionary new material in the 21st century, graphene has continued to receive great attention from all countries in the world in recent years Its application in lithium ion batteries, super-capacitors and other fields is a global research hotspot.

A new type of liquid-flow battery has been developed by a team at Harvard University The team said the liquid-flow batteries could be used not only in smartphones but also in new energy applications, including renewable energy.

The world's largest new energy car market is about to open to competition, attracting more than just the three Koreas Japan's Matsushita has recently launched an expansion of its production capacity in line with Tesla's plans to start production in China.

On August 22, Sichuan Nengtou Dingsheng Lithium Industry Co, Ltd.

Battery box is a box dedicated to storing batteries: a SLR camera handle has a battery box, a camera has a battery box, and so on SLR camera battery box, the role is usually three points: 1, the first is to expand the number of batteries, increase the camera use time; 2, followed by the addition of vertical shutter and the main dial, AF-ON button, etc.