A brief description of BYD's power battery business

Chang 'an BYD in hand joint venture power battery outside the company marked the BYD's power battery for breakthrough. This article will talk about battery some main points in the process of splitting and independent.

For outside form of battery

We first come to about the cooperation of the battery and other car companies and forms of cooperation.Current power battery according to the scale, form the CATL and BYD's double leading pattern, from the point of the overall size and the subsequent potential, if BYD battery business part if just rely on the limitations of available for group, five months before the 2018 company power battery installed capacity of 2.6 Gwh behind CATL, with CATL gap may be more bigger.Under this situation, BYD is full of power and have enough willingness to meet power battery project.As in 2019, new energy vehicles subsidies may fall further, the future of new energy vehicles for the battery cost and the working capital is a huge challenge, from the strategic level, BYD battery system independence out and had to do.

Figure in May 12015-2018 years ago BYD and ningde power battery installed capacity

Reference CATL and saic, CATL and dongfeng group's cooperation pattern, as the demand of future expected battery, battery want to cooperate with domestic auto manufacturers, you need to set up a joint venture company, even in the ontology in the process of IPO transfer part of its equity.The cooperation pattern, in cooperation with Changan form embodies obvious.BYD will set up a factory in Chongqing, to provide power battery for Changan, the first product, which is expected to launch in two years of cooperation.From this perspective, BYD's battery power battery through the partnership business scale and demand has been extended, improved power battery capacity, but the core of the condition here is need area near the electric vehicle.For Changan, the joint venture was established with BYD on the one hand can guarantee "Shangri-la" plan to get adequate supply of power battery, also can control of battery is increasing a lot.

Figure 2 battery potential customers

In terms of domestic battery supply, the main potential three, respectively is the Great Wall, Beijing and guangzhou.Great Wall there are two suppliers of batteries, CATL and fu can respectively, between BYD and the Great Wall of high-level discussion a while ago, may be want to similar to the depth of cooperation;Baic's competition is relatively simple, there are CATL, fu can HeGuoXuan three suppliers, the supply relationship is around the battery price for;Cooperation with gac, before is to consider two main business joint venture with the bus, and in the geographical category can be supply to the nearest Guangzhou new energy gradually expand the demand.

From the point of global customers, BYD battery potential opportunities, there are two possibilities.One is with the capital increase and Daimler to his potential, in Daimler domestic batteries choice above can be used as a backup strategy;There is a big possibility is the Volkswagen group for its massive push to find backup battery suppliers, and the future worldwide demand for batteries to try to enter.Future demand for qualified batteries, there is a performance and capacity requirements.

And in the field of commercial vehicles, due to the existence of more and more standard enclosure, want to enter this field, the threshold of the battery will be much lower.So we see it has relatively better prepared.Earlier this year, dongfeng motor group declared a pure electric truck chassis and all-electric van truck, carrying the BYD lithium iron phosphate batteries.Inside the car was made in emerging enterprises, BYD's battery supply is in the phase of save for a rainy day.

The existing production capacity and future capacity planning

Figure 3 BYD power battery capacity

At the end of 2017, power battery capacity is 16 GWH, 6 GWH of ternary battery, 10 GWH is iron phosphate lithium battery.BYD the Nanchuan 10 GWH a battery plant in Qinghai power battery production offline when the project is formally put into production, the project plan in 2019 put into production, all the annual production capacity can reach 24 GWH.The capacity to digest, now is worth careful consideration, this year's pure electric cars can hold, BYD is the key to achieve sales of 200000 new energy vehicles, the current is battery capacity promotion needs its own hard requirements on the installation.

Figure 4 BYD in development in the area, the price is very competitive in the field of pure electric field

BYD technical status of the battery

BYD on the technical route of the lithium iron phosphate stay longer, exposed the they focus on the battery material system slower switching a weakness.Wedded to the mode of using lithium iron phosphate batteries before, on subsidies on energy consumption and energy density all ate a lot of losses.Shown in the table below, BYD's main idea is to do big batteries to achieve monomer of higher energy density, so do the 300 ah such specifications;In the passenger car with 75 ah batteries in parallel manner, the overall efficiency is not high.

Table 1 BYD's electric lithium iron phosphate batteries

From the actual sense, BYD is under the condition of the battery size remains the same, by adjusting the chemical system implementation capacity to rise.This process changes with the gradual improvement of the batteries products.

Table 2 from the LFP incremental upgrades

And further adjust the chemical system, with the enhancing the energy density of batteries, the whole package to see yuan EV, e5, a series of EV, song qin EV battery energy density in ascension, one of the latest two energy density has reached 160 wh/kg, on the whole packet energy density increase, BYD has taken a relatively long module design, the design concept of using some adventure.In the exchange process with different car companies, there will be more safe and a design scheme of compromise.

BYD's batteries, in general, have the design of the trend, and no special radical, but according to the reality of the ascension of batteries.

The page contains the contents of the machine translation.