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17 The third batch of new energy vehicles battery energy density 115
Apr 07, 2017

With the launch of the first three new energy vehicles 17, the recommended vehicle catalogue, the recent new energy vehicles to increase the speed of batteries significantly accelerated, especially the rapid increase in battery energy density, the new energy vehicle battery line is also clearer, which is conducive to the rapid development of new energy vehicles.

1, bus battery upgrade
 The upgrading of new energy vehicle batteries is evident in nearly two batches of catalogs. The battery of pure electric bus is still the main lithium iron phosphate, and with the release of the third batch of catalogues, the energy density is higher than the battery account. In accordance with the 1.2 times times the standard of subsidized batteries per kilogram of 115 watts, 297 models in the third instalment were only 108, which could not enjoy 1.2 times times the subsidy. This also reduces the pressure on the subsidy of new energy buses.

Fast-charging battery development is not the dominance of lithium titanate, lithium iron phosphate fast-charging model to upgrade faster, forming Yutong, Gold Brigade, Shen Long, such as lithium iron phosphate better product launch. 2017, the second batch of catalogue 5 fast-charging pure electric buses, respectively: Yutong buses 2, Xiamen Jinlong 3, powered batteries are all lithium iron phosphate batteries. The recent diversification of fast charging mode is beneficial to the technology upgrading of fast charging. Especially with the increasing pressure of energy density, the market prospect of lithium titanate is not good.

Fast-charging pure electric buses are based on the fast charging rate to divide the subsidy coefficient, wherein the fast charging rate in 15C above the 1.4 times times subsidy, fast charging rate between 5 to 15C according to 1 time times subsidies, fast charging rate at 3 to 5C according to 0.8 times times subsidy. Comparing 5 pure electric bus fast charging magnification can be found, 5 pure electric bus fast charging ratio between 5 to 15C, that is to say, the second batch of recommended directory 5 fast-charging pure electric buses can be according to 1 time times the central financial subsidies. In addition to raising the charging rate, the fast charging technology has to consider the other four indicators, respectively, energy density, life, safety, price.

2, special car battery upgrade
 Special-purpose vehicle batteries are mainly quota subsidies, so the increase in the battery is mainly in the increase in the level of electricity, battery ternary trend is not obvious. Compared with the higher price of lithium ternary, the reasonable subsidy for the reliable products at lower cost is also a good choice.

The energy density of special vehicles is in the 90-115-watt interval, more than 120 watts of special vehicles less, and the nearly two batches of lifting speed is not fast. Compared with the subsidy of the 1500 yuan, choosing a safe and suitable battery is also good.

3, the ternary trend of passenger car batteries continued

17 Passenger car Batteries also adhere to the ternary lithium line clearer, and pure electric and plug-in ternary are substantially increased. The strength of the passenger car loading of lithium iron phosphate continued to decline.

From pure electric passenger car batteries to see, the third batch of lithium-3-120-130-watt battery has become the main model, to achieve the miniaturization of high-density battery trends. Lithium iron phosphate batteries are difficult to get 1.1 times times the subsidy, the actual market competitiveness will fall sharply.

From the development of the plug-in mixing, the independent plug-in model has only the first catalogue of usable lithium ferric phosphate. The second batch of lithium iron phosphate began to be basically not launched. And BYD is also a step towards the ternary lithium line, which is also a good trend. The Power battery giant, which has been insisting on lithium iron phosphate, has transformed the battery from lithium iron phosphate into a nickel-cobalt-manganese lithium ternary lithium in BYD Qin 100 and Tang 100, reflecting the increasing dominance of the energy density of ternary lithium batteries.

4, the effect of battery lifting highlights

The action plan for promoting the development of automotive power Battery industry puts forward the development of power battery in China by three phases: 2018, upgrading the existing product cost-effective, guaranteeing high-quality battery supply; 2020, a new generation of lithium-ion powered batteries based on existing technology improved large-scale application. The first three directories now look at the apparent trend of technology upgrading.

The specific development goal is the product performance significantly increased, 2020 power battery system than the energy to strive to improve the existing level of a doubling of the 260 watts/kg, cost to 1 yuan/Washi below, 2025 power battery monomer than energy up to 500 watts/kg. Currently looking at the battery energy density has been substantially increased to 130 around, which is also a good effect of policy-driven, the future of battery performance is still the subject, lower cost pressure than the pressure of technology upgrading.

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